NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

     NAME
          nm-settings-nmcli - Description of settings and properties
          of NetworkManager connection profiles for nmcli

     DESCRIPTION
          NetworkManager is based on a concept of connection profiles,
          sometimes referred to as connections only. These connection
          profiles contain a network configuration. When
          NetworkManager activates a connection profile on a network
          device the configuration will be applied and an active
          network connection will be established. Users are free to
          create as many connection profiles as they see fit. Thus
          they are flexible in having various network configurations
          for different networking needs.

          NetworkManager provides an API for configuring connection
          profiles, for activating them to configure the network, and
          inspecting the current network configuration. The command
          line tool nmcli is a client application to NetworkManager
          that uses this API. See nmcli(1) for details.

          With commands like nmcli connection add, nmcli connection
          modify and nmcli connection show, connection profiles can be
          created, modified and inspected. A profile consists of
          properties. On D-Bus this follows the format as described by
          nm-settings-dbus(5), while this manual page describes the
          settings format how they are expected by nmcli.

          The settings and properties shown in tables below list all
          available connection configuration options. However, note
          that not all settings are applicable to all connection
          types.  nmcli connection editor has also a built-in describe
          command that can display description of particular settings
          and properties of this page.

          The setting and property can be abbreviated provided they
          are unique. The list below also shows aliases that can be
          used unqualified instead of the full name. For example
          connection.interface-name and ifname refer to the same
          property.

        connection setting
          General Connection Profile Settings.

          Properties:

          auth-retries
              The number of retries for the authentication. Zero means
              to try indefinitely; -1 means to use a global default.
              If the global default is not set, the authentication

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              retries for 3 times before failing the connection.
              Currently, this only applies to 802-1x authentication.

              Format: int32

          autoconnect
              Alias: autoconnect

              Whether or not the connection should be automatically
              connected by NetworkManager when the resources for the
              connection are available. TRUE to automatically activate
              the connection, FALSE to require manual intervention to
              activate the connection. Note that autoconnect is not
              implemented for VPN profiles. See "secondaries" as an
              alternative to automatically connect VPN profiles.

              Format: boolean

          autoconnect-priority
              The autoconnect priority. If the connection is set to
              autoconnect, connections with higher priority will be
              preferred. Defaults to 0. The higher number means higher
              priority.

              Format: int32

          autoconnect-retries
              The number of times a connection should be tried when
              autoactivating before giving up. Zero means forever, -1
              means the global default (4 times if not overridden).
              Setting this to 1 means to try activation only once
              before blocking autoconnect. Note that after a timeout,
              NetworkManager will try to autoconnect again.

              Format: int32

          autoconnect-slaves
              Whether or not slaves of this connection should be
              automatically brought up when NetworkManager activates
              this connection. This only has a real effect for master
              connections. The properties "autoconnect",
              "autoconnect-priority" and "autoconnect-retries" are
              unrelated to this setting. The permitted values are: 0:
              leave slave connections untouched, 1: activate all the
              slave connections with this connection, -1: default. If
              -1 (default) is set, global
              connection.autoconnect-slaves is read to determine the
              real value. If it is default as well, this fallbacks to
              0.

              Format: NMSettingConnectionAutoconnectSlaves (int32)

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          gateway-ping-timeout
              If greater than zero, delay success of IP addressing
              until either the timeout is reached, or an IP gateway
              replies to a ping.

              Format: uint32

          id
              Alias: con-name

              A human readable unique identifier for the connection,
              like "Work Wi-Fi" or "T-Mobile 3G".

              Format: string

          interface-name
              Alias: ifname

              The name of the network interface this connection is
              bound to. If not set, then the connection can be
              attached to any interface of the appropriate type
              (subject to restrictions imposed by other settings). For
              software devices this specifies the name of the created
              device. For connection types where interface names
              cannot easily be made persistent (e.g. mobile broadband
              or USB Ethernet), this property should not be used.
              Setting this property restricts the interfaces a
              connection can be used with, and if interface names
              change or are reordered the connection may be applied to
              the wrong interface.

              Format: string

          lldp
              Whether LLDP is enabled for the connection.

              Format: int32

          llmnr
              Whether Link-Local Multicast Name Resolution (LLMNR) is
              enabled for the connection. LLMNR is a protocol based on
              the Domain Name System (DNS) packet format that allows
              both IPv4 and IPv6 hosts to perform name resolution for
              hosts on the same local link. The permitted values are:
              "yes" (2) register hostname and resolving for the
              connection, "no" (0) disable LLMNR for the interface,
              "resolve" (1) do not register hostname but allow
              resolving of LLMNR host names If unspecified, "default"
              ultimately depends on the DNS plugin (which for
              systemd-resolved currently means "yes"). This feature
              requires a plugin which supports LLMNR. Otherwise, the
              setting has no effect. One such plugin is

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              dns-systemd-resolved.

              Format: int32

          master
              Alias: master

              Interface name of the master device or UUID of the
              master connection.

              Format: string

          mdns
              Whether mDNS is enabled for the connection. The
              permitted values are: "yes" (2) register hostname and
              resolving for the connection, "no" (0) disable mDNS for
              the interface, "resolve" (1) do not register hostname
              but allow resolving of mDNS host names and "default"
              (-1) to allow lookup of a global default in
              NetworkManager.conf. If unspecified, "default"
              ultimately depends on the DNS plugin (which for
              systemd-resolved currently means "no"). This feature
              requires a plugin which supports mDNS. Otherwise, the
              setting has no effect. One such plugin is
              dns-systemd-resolved.

              Format: int32

          metered
              Whether the connection is metered. When updating this
              property on a currently activated connection, the change
              takes effect immediately.

              Format: NMMetered (int32)

          mud-url
              If configured, set to a Manufacturer Usage Description
              (MUD) URL that points to manufacturer-recommended
              network policies for IoT devices. It is transmitted as a
              DHCPv4 or DHCPv6 option. The value must be a valid URL
              starting with "https://". The special value "none" is
              allowed to indicate that no MUD URL is used. If the
              per-profile value is unspecified (the default), a global
              connection default gets consulted. If still unspecified,
              the ultimate default is "none".

              Format: string

          multi-connect
              Specifies whether the profile can be active multiple
              times at a particular moment. The value is of type
              NMConnectionMultiConnect.

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              Format: int32

          permissions
              An array of strings defining what access a given user
              has to this connection. If this is NULL or empty, all
              users are allowed to access this connection; otherwise
              users are allowed if and only if they are in this list.
              When this is not empty, the connection can be active
              only when one of the specified users is logged into an
              active session. Each entry is of the form
              "[type]:[id]:[reserved]"; for example, "user:dcbw:blah".
              At this time only the "user" [type] is allowed. Any
              other values are ignored and reserved for future use.
              [id] is the username that this permission refers to,
              which may not contain the ":" character. Any [reserved]
              information present must be ignored and is reserved for
              future use. All of [type], [id], and [reserved] must be
              valid UTF-8.

              Format: array of string

          read-only
              FALSE if the connection can be modified using the
              provided settings service's D-Bus interface with the
              right privileges, or TRUE if the connection is read-only
              and cannot be modified.

              Format: boolean

          secondaries
              List of connection UUIDs that should be activated when
              the base connection itself is activated. Currently, only
              VPN connections are supported.

              Format: array of string

          slave-type
              Alias: slave-type

              Setting name of the device type of this slave's master
              connection (eg, "bond"), or NULL if this connection is
              not a slave.

              Format: string

          stable-id
              This represents the identity of the connection used for
              various purposes. It allows to configure multiple
              profiles to share the identity. Also, the stable-id can
              contain placeholders that are substituted dynamically
              and deterministically depending on the context. The
              stable-id is used for generating IPv6 stable private

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              addresses with ipv6.addr-gen-mode=stable-privacy. It is
              also used to seed the generated cloned MAC address for
              ethernet.cloned-mac-address=stable and
              wifi.cloned-mac-address=stable. It is also used as DHCP
              client identifier with ipv4.dhcp-client-id=stable and to
              derive the DHCP DUID with
              ipv6.dhcp-duid=stable-[llt,ll,uuid]. Note that depending
              on the context where it is used, other parameters are
              also seeded into the generation algorithm. For example,
              a per-host key is commonly also included, so that
              different systems end up generating different IDs. Or
              with ipv6.addr-gen-mode=stable-privacy, also the
              device's name is included, so that different interfaces
              yield different addresses. The per-host key is the
              identity of your machine and stored in
              /var/lib/NetworkManager/secret-key. The '$' character is
              treated special to perform dynamic substitutions at
              runtime. Currently, supported are "${CONNECTION}",
              "${DEVICE}", "${MAC}", "${BOOT}", "${RANDOM}". These
              effectively create unique IDs per-connection,
              per-device, per-boot, or every time. Note that
              "${DEVICE}" corresponds to the interface name of the
              device and "${MAC}" is the permanent MAC address of the
              device. Any unrecognized patterns following '$' are
              treated verbatim, however are reserved for future use.
              You are thus advised to avoid '$' or escape it as "$$".
              For example, set it to "${CONNECTION}-${BOOT}-${DEVICE}"
              to create a unique id for this connection that changes
              with every reboot and differs depending on the interface
              where the profile activates. If the value is unset, a
              global connection default is consulted. If the value is
              still unset, the default is similar to "${CONNECTION}"
              and uses a unique, fixed ID for the connection.

              Format: string

          timestamp
              The time, in seconds since the Unix Epoch, that the
              connection was last _successfully_ fully activated.
              NetworkManager updates the connection timestamp
              periodically when the connection is active to ensure
              that an active connection has the latest timestamp. The
              property is only meant for reading (changes to this
              property will not be preserved).

              Format: uint64

          type
              Alias: type

              Base type of the connection. For hardware-dependent
              connections, should contain the setting name of the

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              hardware-type specific setting (ie, "802-3-ethernet" or
              "802-11-wireless" or "bluetooth", etc), and for
              non-hardware dependent connections like VPN or
              otherwise, should contain the setting name of that
              setting type (ie, "vpn" or "bridge", etc).

              Format: string

          uuid
              A universally unique identifier for the connection, for
              example generated with libuuid. It should be assigned
              when the connection is created, and never changed as
              long as the connection still applies to the same
              network. For example, it should not be changed when the
              "id" property or NMSettingIP4Config changes, but might
              need to be re-created when the Wi-Fi SSID, mobile
              broadband network provider, or "type" property changes.
              The UUID must be in the format
              "2815492f-7e56-435e-b2e9-246bd7cdc664" (ie, contains
              only hexadecimal characters and "-").

              Format: string

          wait-device-timeout
              Timeout in milliseconds to wait for device at startup.
              During boot, devices may take a while to be detected by
              the driver. This property will cause to delay
              NetworkManager-wait-online.service and nm-online to give
              the device a chance to appear. This works by waiting for
              the given timeout until a compatible device for the
              profile is available and managed. The value 0 means no
              wait time. The default value is -1, which currently has
              the same meaning as no wait time.

              Format: int32

          zone
              The trust level of a the connection. Free form
              case-insensitive string (for example "Home", "Work",
              "Public"). NULL or unspecified zone means the connection
              will be placed in the default zone as defined by the
              firewall. When updating this property on a currently
              activated connection, the change takes effect
              immediately.

              Format: string

        6lowpan setting
          6LoWPAN Settings.

          Properties:

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          parent
              Alias: dev

              If given, specifies the parent interface name or parent
              connection UUID from which this 6LowPAN interface should
              be created.

              Format: string

        802-1x setting
          IEEE 802.1x Authentication Settings.

          Properties:

          altsubject-matches
              List of strings to be matched against the altSubjectName
              of the certificate presented by the authentication
              server. If the list is empty, no verification of the
              server certificate's altSubjectName is performed.

              Format: array of string

          anonymous-identity
              Anonymous identity string for EAP authentication
              methods. Used as the unencrypted identity with EAP types
              that support different tunneled identity like EAP-TTLS.

              Format: string

          auth-timeout
              A timeout for the authentication. Zero means the global
              default; if the global default is not set, the
              authentication timeout is 25 seconds.

              Format: int32

          ca-cert
              Contains the CA certificate if used by the EAP method
              specified in the "eap" property. Certificate data is
              specified using a "scheme"; three are currently
              supported: blob, path and pkcs#11 URL. When using the
              blob scheme this property should be set to the
              certificate's DER encoded data. When using the path
              scheme, this property should be set to the full UTF-8
              encoded path of the certificate, prefixed with the
              string "file://" and ending with a terminating NUL byte.
              This property can be unset even if the EAP method
              supports CA certificates, but this allows
              man-in-the-middle attacks and is NOT recommended. Note
              that enabling NMSetting8021x:system-ca-certs will
              override this setting to use the built-in path, if the
              built-in path is not a directory.

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              Format: byte array

          ca-cert-password
              The password used to access the CA certificate stored in
              "ca-cert" property. Only makes sense if the certificate
              is stored on a PKCS#11 token that requires a login.

              Format: string

          ca-cert-password-flags
              Flags indicating how to handle the "ca-cert-password"
              property. See the section called lqSecret flag types:rq
              for flag values.

              Format: NMSettingSecretFlags (uint32)

          ca-path
              UTF-8 encoded path to a directory containing PEM or DER
              formatted certificates to be added to the verification
              chain in addition to the certificate specified in the
              "ca-cert" property. If NMSetting8021x:system-ca-certs is
              enabled and the built-in CA path is an existing
              directory, then this setting is ignored.

              Format: string

          client-cert
              Contains the client certificate if used by the EAP
              method specified in the "eap" property. Certificate data
              is specified using a "scheme"; two are currently
              supported: blob and path. When using the blob scheme
              (which is backwards compatible with NM 0.7.x) this
              property should be set to the certificate's DER encoded
              data. When using the path scheme, this property should
              be set to the full UTF-8 encoded path of the
              certificate, prefixed with the string "file://" and
              ending with a terminating NUL byte.

              Format: byte array

          client-cert-password
              The password used to access the client certificate
              stored in "client-cert" property. Only makes sense if
              the certificate is stored on a PKCS#11 token that
              requires a login.

              Format: string

          client-cert-password-flags
              Flags indicating how to handle the
              "client-cert-password" property. See the section called
              lqSecret flag types:rq for flag values.

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              Format: NMSettingSecretFlags (uint32)

          domain-match
              Constraint for server domain name. If set, this list of
              FQDNs is used as a match requirement for dNSName
              element(s) of the certificate presented by the
              authentication server. If a matching dNSName is found,
              this constraint is met. If no dNSName values are
              present, this constraint is matched against SubjectName
              CN using the same comparison. Multiple valid FQDNs can
              be passed as a ";" delimited list.

              Format: string

          domain-suffix-match
              Constraint for server domain name. If set, this FQDN is
              used as a suffix match requirement for dNSName
              element(s) of the certificate presented by the
              authentication server. If a matching dNSName is found,
              this constraint is met. If no dNSName values are
              present, this constraint is matched against SubjectName
              CN using same suffix match comparison. Since version
              1.24, multiple valid FQDNs can be passed as a ";"
              delimited list.

              Format: string

          eap
              The allowed EAP method to be used when authenticating to
              the network with 802.1x. Valid methods are: "leap",
              "md5", "tls", "peap", "ttls", "pwd", and "fast". Each
              method requires different configuration using the
              properties of this setting; refer to wpa_supplicant
              documentation for the allowed combinations.

              Format: array of string

          identity
              Identity string for EAP authentication methods. Often
              the user's user or login name.

              Format: string

          optional
              Whether the 802.1X authentication is optional. If TRUE,
              the activation will continue even after a timeout or an
              authentication failure. Setting the property to TRUE is
              currently allowed only for Ethernet connections. If set
              to FALSE, the activation can continue only after a
              successful authentication.

              Format: boolean

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          pac-file
              UTF-8 encoded file path containing PAC for EAP-FAST.

              Format: string

          password
              UTF-8 encoded password used for EAP authentication
              methods. If both the "password" property and the
              "password-raw" property are specified, "password" is
              preferred.

              Format: string

          password-flags
              Flags indicating how to handle the "password" property.
              See the section called lqSecret flag types:rq for flag
              values.

              Format: NMSettingSecretFlags (uint32)

          password-raw
              Password used for EAP authentication methods, given as a
              byte array to allow passwords in other encodings than
              UTF-8 to be used. If both the "password" property and
              the "password-raw" property are specified, "password" is
              preferred.

              Format: byte array

          password-raw-flags
              Flags indicating how to handle the "password-raw"
              property. See the section called lqSecret flag types:rq
              for flag values.

              Format: NMSettingSecretFlags (uint32)

          phase1-auth-flags
              Specifies authentication flags to use in "phase 1" outer
              authentication using NMSetting8021xAuthFlags options.
              The individual TLS versions can be explicitly disabled.
              If a certain TLS disable flag is not set, it is up to
              the supplicant to allow or forbid it. The TLS options
              map to tls_disable_tlsv1_x settings. See the
              wpa_supplicant documentation for more details.

              Format: uint32

          phase1-fast-provisioning
              Enables or disables in-line provisioning of EAP-FAST
              credentials when FAST is specified as the EAP method in
              the "eap" property. Recognized values are "0"
              (disabled), "1" (allow unauthenticated provisioning),

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              "2" (allow authenticated provisioning), and "3" (allow
              both authenticated and unauthenticated provisioning).
              See the wpa_supplicant documentation for more details.

              Format: string

          phase1-peaplabel
              Forces use of the new PEAP label during key derivation.
              Some RADIUS servers may require forcing the new PEAP
              label to interoperate with PEAPv1. Set to "1" to force
              use of the new PEAP label. See the wpa_supplicant
              documentation for more details.

              Format: string

          phase1-peapver
              Forces which PEAP version is used when PEAP is set as
              the EAP method in the "eap" property. When unset, the
              version reported by the server will be used. Sometimes
              when using older RADIUS servers, it is necessary to
              force the client to use a particular PEAP version. To do
              so, this property may be set to "0" or "1" to force that
              specific PEAP version.

              Format: string

          phase2-altsubject-matches
              List of strings to be matched against the altSubjectName
              of the certificate presented by the authentication
              server during the inner "phase 2" authentication. If the
              list is empty, no verification of the server
              certificate's altSubjectName is performed.

              Format: array of string

          phase2-auth
              Specifies the allowed "phase 2" inner authentication
              method when an EAP method that uses an inner TLS tunnel
              is specified in the "eap" property. For TTLS this
              property selects one of the supported non-EAP inner
              methods: "pap", "chap", "mschap", "mschapv2" while
              "phase2-autheap" selects an EAP inner method. For PEAP
              this selects an inner EAP method, one of: "gtc", "otp",
              "md5" and "tls". Each "phase 2" inner method requires
              specific parameters for successful authentication; see
              the wpa_supplicant documentation for more details. Both
              "phase2-auth" and "phase2-autheap" cannot be specified.

              Format: string

          phase2-autheap
              Specifies the allowed "phase 2" inner EAP-based

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              authentication method when TTLS is specified in the
              "eap" property. Recognized EAP-based "phase 2" methods
              are "md5", "mschapv2", "otp", "gtc", and "tls". Each
              "phase 2" inner method requires specific parameters for
              successful authentication; see the wpa_supplicant
              documentation for more details.

              Format: string

          phase2-ca-cert
              Contains the "phase 2" CA certificate if used by the EAP
              method specified in the "phase2-auth" or
              "phase2-autheap" properties. Certificate data is
              specified using a "scheme"; three are currently
              supported: blob, path and pkcs#11 URL. When using the
              blob scheme this property should be set to the
              certificate's DER encoded data. When using the path
              scheme, this property should be set to the full UTF-8
              encoded path of the certificate, prefixed with the
              string "file://" and ending with a terminating NUL byte.
              This property can be unset even if the EAP method
              supports CA certificates, but this allows
              man-in-the-middle attacks and is NOT recommended. Note
              that enabling NMSetting8021x:system-ca-certs will
              override this setting to use the built-in path, if the
              built-in path is not a directory.

              Format: byte array

          phase2-ca-cert-password
              The password used to access the "phase2" CA certificate
              stored in "phase2-ca-cert" property. Only makes sense if
              the certificate is stored on a PKCS#11 token that
              requires a login.

              Format: string

          phase2-ca-cert-password-flags
              Flags indicating how to handle the
              "phase2-ca-cert-password" property. See the section
              called lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          phase2-ca-path
              UTF-8 encoded path to a directory containing PEM or DER
              formatted certificates to be added to the verification
              chain in addition to the certificate specified in the
              "phase2-ca-cert" property. If
              NMSetting8021x:system-ca-certs is enabled and the
              built-in CA path is an existing directory, then this
              setting is ignored.

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              Format: string

          phase2-client-cert
              Contains the "phase 2" client certificate if used by the
              EAP method specified in the "phase2-auth" or
              "phase2-autheap" properties. Certificate data is
              specified using a "scheme"; two are currently supported:
              blob and path. When using the blob scheme (which is
              backwards compatible with NM 0.7.x) this property should
              be set to the certificate's DER encoded data. When using
              the path scheme, this property should be set to the full
              UTF-8 encoded path of the certificate, prefixed with the
              string "file://" and ending with a terminating NUL byte.
              This property can be unset even if the EAP method
              supports CA certificates, but this allows
              man-in-the-middle attacks and is NOT recommended.

              Format: byte array

          phase2-client-cert-password
              The password used to access the "phase2" client
              certificate stored in "phase2-client-cert" property.
              Only makes sense if the certificate is stored on a
              PKCS#11 token that requires a login.

              Format: string

          phase2-client-cert-password-flags
              Flags indicating how to handle the
              "phase2-client-cert-password" property. See the section
              called lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          phase2-domain-match
              Constraint for server domain name. If set, this list of
              FQDNs is used as a match requirement for dNSName
              element(s) of the certificate presented by the
              authentication server during the inner "phase 2"
              authentication. If a matching dNSName is found, this
              constraint is met. If no dNSName values are present,
              this constraint is matched against SubjectName CN using
              the same comparison. Multiple valid FQDNs can be passed
              as a ";" delimited list.

              Format: string

          phase2-domain-suffix-match
              Constraint for server domain name. If set, this FQDN is
              used as a suffix match requirement for dNSName
              element(s) of the certificate presented by the
              authentication server during the inner "phase 2"

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              authentication. If a matching dNSName is found, this
              constraint is met. If no dNSName values are present,
              this constraint is matched against SubjectName CN using
              same suffix match comparison. Since version 1.24,
              multiple valid FQDNs can be passed as a ";" delimited
              list.

              Format: string

          phase2-private-key
              Contains the "phase 2" inner private key when the
              "phase2-auth" or "phase2-autheap" property is set to
              "tls". Key data is specified using a "scheme"; two are
              currently supported: blob and path. When using the blob
              scheme and private keys, this property should be set to
              the key's encrypted PEM encoded data. When using private
              keys with the path scheme, this property should be set
              to the full UTF-8 encoded path of the key, prefixed with
              the string "file://" and ending with a terminating NUL
              byte. When using PKCS#12 format private keys and the
              blob scheme, this property should be set to the PKCS#12
              data and the "phase2-private-key-password" property must
              be set to password used to decrypt the PKCS#12
              certificate and key. When using PKCS#12 files and the
              path scheme, this property should be set to the full
              UTF-8 encoded path of the key, prefixed with the string
              "file://" and ending with a terminating NUL byte, and as
              with the blob scheme the "phase2-private-key-password"
              property must be set to the password used to decode the
              PKCS#12 private key and certificate.

              Format: byte array

          phase2-private-key-password
              The password used to decrypt the "phase 2" private key
              specified in the "phase2-private-key" property when the
              private key either uses the path scheme, or is a PKCS#12
              format key.

              Format: string

          phase2-private-key-password-flags
              Flags indicating how to handle the
              "phase2-private-key-password" property. See the section
              called lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          phase2-subject-match
              Substring to be matched against the subject of the
              certificate presented by the authentication server
              during the inner "phase 2" authentication. When unset,

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              no verification of the authentication server
              certificate's subject is performed. This property
              provides little security, if any, and its use is
              deprecated in favor of
              NMSetting8021x:phase2-domain-suffix-match.

              Format: string

          pin
              PIN used for EAP authentication methods.

              Format: string

          pin-flags
              Flags indicating how to handle the "pin" property. See
              the section called lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          private-key
              Contains the private key when the "eap" property is set
              to "tls". Key data is specified using a "scheme"; two
              are currently supported: blob and path. When using the
              blob scheme and private keys, this property should be
              set to the key's encrypted PEM encoded data. When using
              private keys with the path scheme, this property should
              be set to the full UTF-8 encoded path of the key,
              prefixed with the string "file://" and ending with a
              terminating NUL byte. When using PKCS#12 format private
              keys and the blob scheme, this property should be set to
              the PKCS#12 data and the "private-key-password" property
              must be set to password used to decrypt the PKCS#12
              certificate and key. When using PKCS#12 files and the
              path scheme, this property should be set to the full
              UTF-8 encoded path of the key, prefixed with the string
              "file://" and ending with a terminating NUL byte, and as
              with the blob scheme the "private-key-password" property
              must be set to the password used to decode the PKCS#12
              private key and certificate. WARNING: "private-key" is
              not a "secret" property, and thus unencrypted private
              key data using the BLOB scheme may be readable by
              unprivileged users. Private keys should always be
              encrypted with a private key password to prevent
              unauthorized access to unencrypted private key data.

              Format: byte array

          private-key-password
              The password used to decrypt the private key specified
              in the "private-key" property when the private key
              either uses the path scheme, or if the private key is a
              PKCS#12 format key.

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Format: string

          private-key-password-flags
              Flags indicating how to handle the
              "private-key-password" property. See the section called
              lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          subject-match
              Substring to be matched against the subject of the
              certificate presented by the authentication server. When
              unset, no verification of the authentication server
              certificate's subject is performed. This property
              provides little security, if any, and its use is
              deprecated in favor of
              NMSetting8021x:domain-suffix-match.

              Format: string

          system-ca-certs
              When TRUE, overrides the "ca-path" and "phase2-ca-path"
              properties using the system CA directory specified at
              configure time with the --system-ca-path switch. The
              certificates in this directory are added to the
              verification chain in addition to any certificates
              specified by the "ca-cert" and "phase2-ca-cert"
              properties. If the path provided with --system-ca-path
              is rather a file name (bundle of trusted CA
              certificates), it overrides "ca-cert" and
              "phase2-ca-cert" properties instead (sets
              ca_cert/ca_cert2 options for wpa_supplicant).

              Format: boolean

        adsl setting
          ADSL Settings.

          Properties:

          encapsulation
              Alias: encapsulation

              Encapsulation of ADSL connection. Can be "vcmux" or
              "llc".

              Format: string

          password
              Alias: password

              Password used to authenticate with the ADSL service.

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Format: string

          password-flags
              Flags indicating how to handle the "password" property.
              See the section called lqSecret flag types:rq for flag
              values.

              Format: NMSettingSecretFlags (uint32)

          protocol
              Alias: protocol

              ADSL connection protocol. Can be "pppoa", "pppoe" or
              "ipoatm".

              Format: string

          username
              Alias: username

              Username used to authenticate with the ADSL service.

              Format: string

          vci
              VCI of ADSL connection

              Format: uint32

          vpi
              VPI of ADSL connection

              Format: uint32

        bluetooth setting
          Bluetooth Settings.

          Properties:

          bdaddr
              Alias: addr

              The Bluetooth address of the device.

              Format: byte array

          type
              Alias: bt-type

              Either "dun" for Dial-Up Networking connections or
              "panu" for Personal Area Networking connections to
              devices supporting the NAP profile.

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Format: string

        bond setting
          Bonding Settings.

          Properties:

          options
              Dictionary of key/value pairs of bonding options. Both
              keys and values must be strings. Option names must
              contain only alphanumeric characters (ie, [a-zA-Z0-9]).

              Format: dict of string to string

        bridge setting
          Bridging Settings.

          Properties:

          ageing-time
              Alias: ageing-time

              The Ethernet MAC address aging time, in seconds.

              Format: uint32

          forward-delay
              Alias: forward-delay

              The Spanning Tree Protocol (STP) forwarding delay, in
              seconds.

              Format: uint32

          group-address
              If specified, The MAC address of the multicast group
              this bridge uses for STP. The address must be a
              link-local address in standard Ethernet MAC address
              format, ie an address of the form 01:80:C2:00:00:0X,
              with X in [0, 4..F]. If not specified the default value
              is 01:80:C2:00:00:00.

              Format: byte array

          group-forward-mask
              Alias: group-forward-mask

              A mask of group addresses to forward. Usually, group
              addresses in the range from 01:80:C2:00:00:00 to
              01:80:C2:00:00:0F are not forwarded according to
              standards. This property is a mask of 16 bits, each
              corresponding to a group address in that range that must

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              be forwarded. The mask can't have bits 0, 1 or 2 set
              because they are used for STP, MAC pause frames and
              LACP.

              Format: uint32

          hello-time
              Alias: hello-time

              The Spanning Tree Protocol (STP) hello time, in seconds.

              Format: uint32

          mac-address
              Alias: mac

              If specified, the MAC address of bridge. When creating a
              new bridge, this MAC address will be set. If this field
              is left unspecified, the "ethernet.cloned-mac-address"
              is referred instead to generate the initial MAC address.
              Note that setting "ethernet.cloned-mac-address" anyway
              overwrites the MAC address of the bridge later while
              activating the bridge. Hence, this property is
              deprecated. Deprecated: 1

              Format: byte array

          max-age
              Alias: max-age

              The Spanning Tree Protocol (STP) maximum message age, in
              seconds.

              Format: uint32

          multicast-hash-max
              Set maximum size of multicast hash table (value must be
              a power of 2).

              Format: uint32

          multicast-last-member-count
              Set the number of queries the bridge will send before
              stopping forwarding a multicast group after a "leave"
              message has been received.

              Format: uint32

          multicast-last-member-interval
              Set interval (in deciseconds) between queries to find
              remaining members of a group, after a "leave" message is
              received.

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Format: uint64

          multicast-membership-interval
              Set delay (in deciseconds) after which the bridge will
              leave a group, if no membership reports for this group
              are received.

              Format: uint64

          multicast-querier
              Enable or disable sending of multicast queries by the
              bridge. If not specified the option is disabled.

              Format: boolean

          multicast-querier-interval
              If no queries are seen after this delay (in deciseconds)
              has passed, the bridge will start to send its own
              queries.

              Format: uint64

          multicast-query-interval
              Interval (in deciseconds) between queries sent by the
              bridge after the end of the startup phase.

              Format: uint64

          multicast-query-response-interval
              Set the Max Response Time/Max Response Delay (in
              deciseconds) for IGMP/MLD queries sent by the bridge.

              Format: uint64

          multicast-query-use-ifaddr
              If enabled the bridge's own IP address is used as the
              source address for IGMP queries otherwise the default of
              0.0.0.0 is used.

              Format: boolean

          multicast-router
              Sets bridge's multicast router. Multicast-snooping must
              be enabled for this option to work. Supported values
              are: 'auto', 'disabled', 'enabled' to which kernel
              assigns the numbers 1, 0, and 2, respectively. If not
              specified the default value is 'auto' (1).

              Format: string

          multicast-snooping
              Alias: multicast-snooping

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Controls whether IGMP snooping is enabled for this
              bridge. Note that if snooping was automatically disabled
              due to hash collisions, the system may refuse to enable
              the feature until the collisions are resolved.

              Format: boolean

          multicast-startup-query-count
              Set the number of IGMP queries to send during startup
              phase.

              Format: uint32

          multicast-startup-query-interval
              Sets the time (in deciseconds) between queries sent out
              at startup to determine membership information.

              Format: uint64

          priority
              Alias: priority

              Sets the Spanning Tree Protocol (STP) priority for this
              bridge. Lower values are "better"; the lowest priority
              bridge will be elected the root bridge.

              Format: uint32

          stp
              Alias: stp

              Controls whether Spanning Tree Protocol (STP) is enabled
              for this bridge.

              Format: boolean

          vlan-default-pvid
              The default PVID for the ports of the bridge, that is
              the VLAN id assigned to incoming untagged frames.

              Format: uint32

          vlan-filtering
              Control whether VLAN filtering is enabled on the bridge.

              Format: boolean

          vlan-protocol
              If specified, the protocol used for VLAN filtering.
              Supported values are: '802.1Q', '802.1ad'. If not
              specified the default value is '802.1Q'.

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Format: string

          vlan-stats-enabled
              Controls whether per-VLAN stats accounting is enabled.

              Format: boolean

          vlans
              Array of bridge VLAN objects. In addition to the VLANs
              specified here, the bridge will also have the
              default-pvid VLAN configured by the
              bridge.vlan-default-pvid property. In nmcli the VLAN
              list can be specified with the following syntax: $vid
              [pvid] [untagged] [, $vid [pvid] [untagged]]... where
              $vid is either a single id between 1 and 4094 or a
              range, represented as a couple of ids separated by a
              dash.

              Format: array of vardict

        bridge-port setting
          Bridge Port Settings.

          Properties:

          hairpin-mode
              Alias: hairpin

              Enables or disables "hairpin mode" for the port, which
              allows frames to be sent back out through the port the
              frame was received on.

              Format: boolean

          path-cost
              Alias: path-cost

              The Spanning Tree Protocol (STP) port cost for
              destinations via this port.

              Format: uint32

          priority
              Alias: priority

              The Spanning Tree Protocol (STP) priority of this bridge
              port.

              Format: uint32

          vlans
              Array of bridge VLAN objects. In addition to the VLANs

     Page 23              NetworkManager 1.32.12     (printed 5/26/22)

     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              specified here, the port will also have the default-pvid
              VLAN configured on the bridge by the
              bridge.vlan-default-pvid property. In nmcli the VLAN
              list can be specified with the following syntax: $vid
              [pvid] [untagged] [, $vid [pvid] [untagged]]... where
              $vid is either a single id between 1 and 4094 or a
              range, represented as a couple of ids separated by a
              dash.

              Format: array of vardict

        cdma setting
          CDMA-based Mobile Broadband Settings.

          Properties:

          mtu
              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple
              frames.

              Format: uint32

          number
              The number to dial to establish the connection to the
              CDMA-based mobile broadband network, if any. If not
              specified, the default number (#777) is used when
              required.

              Format: string

          password
              Alias: password

              The password used to authenticate with the network, if
              required. Many providers do not require a password, or
              accept any password. But if a password is required, it
              is specified here.

              Format: string

          password-flags
              Flags indicating how to handle the "password" property.
              See the section called lqSecret flag types:rq for flag
              values.

              Format: NMSettingSecretFlags (uint32)

          username
              Alias: user

              The username used to authenticate with the network, if

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              required. Many providers do not require a username, or
              accept any username. But if a username is required, it
              is specified here.

              Format: string

        dcb setting
          Data Center Bridging Settings.

          Properties:

          app-fcoe-flags
              Specifies the NMSettingDcbFlags for the DCB FCoE
              application. Flags may be any combination of
              NM_SETTING_DCB_FLAG_ENABLE (0x1),
              NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
              NM_SETTING_DCB_FLAG_WILLING (0x4).

              Format: NMSettingDcbFlags (uint32)

          app-fcoe-mode
              The FCoE controller mode; either "fabric" (default) or
              "vn2vn".

              Format: string

          app-fcoe-priority
              The highest User Priority (0 - 7) which FCoE frames
              should use, or -1 for default priority. Only used when
              the "app-fcoe-flags" property includes the
              NM_SETTING_DCB_FLAG_ENABLE (0x1) flag.

              Format: int32

          app-fip-flags
              Specifies the NMSettingDcbFlags for the DCB FIP
              application. Flags may be any combination of
              NM_SETTING_DCB_FLAG_ENABLE (0x1),
              NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
              NM_SETTING_DCB_FLAG_WILLING (0x4).

              Format: NMSettingDcbFlags (uint32)

          app-fip-priority
              The highest User Priority (0 - 7) which FIP frames
              should use, or -1 for default priority. Only used when
              the "app-fip-flags" property includes the
              NM_SETTING_DCB_FLAG_ENABLE (0x1) flag.

              Format: int32

          app-iscsi-flags

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              Specifies the NMSettingDcbFlags for the DCB iSCSI
              application. Flags may be any combination of
              NM_SETTING_DCB_FLAG_ENABLE (0x1),
              NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
              NM_SETTING_DCB_FLAG_WILLING (0x4).

              Format: NMSettingDcbFlags (uint32)

          app-iscsi-priority
              The highest User Priority (0 - 7) which iSCSI frames
              should use, or -1 for default priority. Only used when
              the "app-iscsi-flags" property includes the
              NM_SETTING_DCB_FLAG_ENABLE (0x1) flag.

              Format: int32

          priority-bandwidth
              An array of 8 uint values, where the array index
              corresponds to the User Priority (0 - 7) and the value
              indicates the percentage of bandwidth of the priority's
              assigned group that the priority may use. The sum of all
              percentages for priorities which belong to the same
              group must total 100 percents.

              Format: array of uint32

          priority-flow-control
              An array of 8 boolean values, where the array index
              corresponds to the User Priority (0 - 7) and the value
              indicates whether or not the corresponding priority
              should transmit priority pause.

              Format: array of uint32

          priority-flow-control-flags
              Specifies the NMSettingDcbFlags for DCB Priority Flow
              Control (PFC). Flags may be any combination of
              NM_SETTING_DCB_FLAG_ENABLE (0x1),
              NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
              NM_SETTING_DCB_FLAG_WILLING (0x4).

              Format: NMSettingDcbFlags (uint32)

          priority-group-bandwidth
              An array of 8 uint values, where the array index
              corresponds to the Priority Group ID (0 - 7) and the
              value indicates the percentage of link bandwidth
              allocated to that group. Allowed values are 0 - 100, and
              the sum of all values must total 100 percents.

              Format: array of uint32

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

          priority-group-flags
              Specifies the NMSettingDcbFlags for DCB Priority Groups.
              Flags may be any combination of
              NM_SETTING_DCB_FLAG_ENABLE (0x1),
              NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
              NM_SETTING_DCB_FLAG_WILLING (0x4).

              Format: NMSettingDcbFlags (uint32)

          priority-group-id
              An array of 8 uint values, where the array index
              corresponds to the User Priority (0 - 7) and the value
              indicates the Priority Group ID. Allowed Priority Group
              ID values are 0 - 7 or 15 for the unrestricted group.

              Format: array of uint32

          priority-strict-bandwidth
              An array of 8 boolean values, where the array index
              corresponds to the User Priority (0 - 7) and the value
              indicates whether or not the priority may use all of the
              bandwidth allocated to its assigned group.

              Format: array of uint32

          priority-traffic-class
              An array of 8 uint values, where the array index
              corresponds to the User Priority (0 - 7) and the value
              indicates the traffic class (0 - 7) to which the
              priority is mapped.

              Format: array of uint32

        ethtool setting
          Ethtool Ethernet Settings.

          Properties:

          coalesce-adaptive-rx

          coalesce-adaptive-tx

          coalesce-pkt-rate-high

          coalesce-pkt-rate-low

          coalesce-rx-frames

          coalesce-rx-frames-high

          coalesce-rx-frames-irq

     Page 27              NetworkManager 1.32.12     (printed 5/26/22)

     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

          coalesce-rx-frames-low

          coalesce-rx-usecs

          coalesce-rx-usecs-high

          coalesce-rx-usecs-irq

          coalesce-rx-usecs-low

          coalesce-sample-interval

          coalesce-stats-block-usecs

          coalesce-tx-frames

          coalesce-tx-frames-high

          coalesce-tx-frames-irq

          coalesce-tx-frames-low

          coalesce-tx-usecs

          coalesce-tx-usecs-high

          coalesce-tx-usecs-irq

          coalesce-tx-usecs-low

          feature-esp-hw-offload

          feature-esp-tx-csum-hw-offload

          feature-fcoe-mtu

          feature-gro

          feature-gso

          feature-highdma

          feature-hw-tc-offload

          feature-l2-fwd-offload

          feature-loopback

          feature-lro

          feature-macsec-hw-offload

     Page 28              NetworkManager 1.32.12     (printed 5/26/22)

     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

          feature-ntuple

          feature-rx

          feature-rx-all

          feature-rx-fcs

          feature-rx-gro-hw

          feature-rx-gro-list

          feature-rx-udp-gro-forwarding

          feature-rx-udp_tunnel-port-offload

          feature-rx-vlan-filter

          feature-rx-vlan-stag-filter

          feature-rx-vlan-stag-hw-parse

          feature-rxhash

          feature-rxvlan

          feature-sg

          feature-tls-hw-record

          feature-tls-hw-rx-offload

          feature-tls-hw-tx-offload

          feature-tso

          feature-tx

          feature-tx-checksum-fcoe-crc

          feature-tx-checksum-ip-generic

          feature-tx-checksum-ipv4

          feature-tx-checksum-ipv6

          feature-tx-checksum-sctp

          feature-tx-esp-segmentation

          feature-tx-fcoe-segmentation

     Page 29              NetworkManager 1.32.12     (printed 5/26/22)

     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

          feature-tx-gre-csum-segmentation

          feature-tx-gre-segmentation

          feature-tx-gso-list

          feature-tx-gso-partial

          feature-tx-gso-robust

          feature-tx-ipxip4-segmentation

          feature-tx-ipxip6-segmentation

          feature-tx-nocache-copy

          feature-tx-scatter-gather

          feature-tx-scatter-gather-fraglist

          feature-tx-sctp-segmentation

          feature-tx-tcp-ecn-segmentation

          feature-tx-tcp-mangleid-segmentation

          feature-tx-tcp-segmentation

          feature-tx-tcp6-segmentation

          feature-tx-tunnel-remcsum-segmentation

          feature-tx-udp-segmentation

          feature-tx-udp_tnl-csum-segmentation

          feature-tx-udp_tnl-segmentation

          feature-tx-vlan-stag-hw-insert

          feature-txvlan

          pause-autoneg
              Whether to automatically negotiate on pause frame of
              flow control mechanism defined by IEEE 802.3x standard.

          pause-rx
              Whether RX pause should be enabled. Only valid when
              automatic negotiation is disabled

          pause-tx
              Whether TX pause should be enabled. Only valid when

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

              automatic negotiation is disabled

          ring-rx

          ring-rx-jumbo

          ring-rx-mini

          ring-tx

        gsm setting
          GSM-based Mobile Broadband Settings.

          Properties:

          apn
              Alias: apn

              The GPRS Access Point Name specifying the APN used when
              establishing a data session with the GSM-based network.
              The APN often determines how the user will be billed for
              their network usage and whether the user has access to
              the Internet or just a provider-specific walled-garden,
              so it is important to use the correct APN for the user's
              mobile broadband plan. The APN may only be composed of
              the characters a-z, 0-9, ., and - per GSM 03.60 Section
              14.9.

              Format: string

          auto-config
              When TRUE, the settings such as APN, username, or
              password will default to values that match the network
              the modem will register to in the Mobile Broadband
              Provider database.

              Format: boolean

          device-id
              The device unique identifier (as given by the WWAN
              management service) which this connection applies to. If
              given, the connection will only apply to the specified
              device.

              Format: string

          home-only
              When TRUE, only connections to the home network will be
              allowed. Connections to roaming networks will not be
              made.

              Format: boolean

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

          mtu
              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple
              frames.

              Format: uint32

          network-id
              The Network ID (GSM LAI format, ie MCC-MNC) to force
              specific network registration. If the Network ID is
              specified, NetworkManager will attempt to force the
              device to register only on the specified network. This
              can be used to ensure that the device does not roam when
              direct roaming control of the device is not otherwise
              possible.

              Format: string

          number
              Legacy setting that used to help establishing PPP data
              sessions for GSM-based modems. Deprecated: 1

              Format: string

          password
              Alias: password

              The password used to authenticate with the network, if
              required. Many providers do not require a password, or
              accept any password. But if a password is required, it
              is specified here.

              Format: string

          password-flags
              Flags indicating how to handle the "password" property.
              See the section called lqSecret flag types:rq for flag
              values.

              Format: NMSettingSecretFlags (uint32)

          pin
              If the SIM is locked with a PIN it must be unlocked
              before any other operations are requested. Specify the
              PIN here to allow operation of the device.

              Format: string

          pin-flags
              Flags indicating how to handle the "pin" property. See
              the section called lqSecret flag types:rq for flag values.

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              Format: NMSettingSecretFlags (uint32)

          sim-id
              The SIM card unique identifier (as given by the WWAN
              management service) which this connection applies to. If
              given, the connection will apply to any device also
              allowed by "device-id" which contains a SIM card
              matching the given identifier.

              Format: string

          sim-operator-id
              A MCC/MNC string like "310260" or "21601" identifying
              the specific mobile network operator which this
              connection applies to. If given, the connection will
              apply to any device also allowed by "device-id" and
              "sim-id" which contains a SIM card provisioned by the
              given operator.

              Format: string

          username
              Alias: user

              The username used to authenticate with the network, if
              required. Many providers do not require a username, or
              accept any username. But if a username is required, it
              is specified here.

              Format: string

        infiniband setting
          Infiniband Settings.

          Properties:

          mac-address
              Alias: mac

              If specified, this connection will only apply to the
              IPoIB device whose permanent MAC address matches. This
              property does not change the MAC address of the device
              (i.e. MAC spoofing).

              Format: byte array

          mtu
              Alias: mtu

              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple
              frames.

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              Format: uint32

          p-key
              Alias: p-key

              The InfiniBand P_Key to use for this device. A value of
              -1 means to use the default P_Key (aka "the P_Key at
              index 0"). Otherwise, it is a 16-bit unsigned integer,
              whose high bit is set if it is a "full membership"
              P_Key.

              Format: int32

          parent
              Alias: parent

              The interface name of the parent device of this device.
              Normally NULL, but if the "p_key" property is set, then
              you must specify the base device by setting either this
              property or "mac-address".

              Format: string

          transport-mode
              Alias: transport-mode

              The IP-over-InfiniBand transport mode. Either "datagram"
              or "connected".

              Format: string

        ipv4 setting
          IPv4 Settings.

          Properties:

          addresses
              Alias: ip4

              A list of IPv4 addresses and their prefix length.
              Multiple addresses can be separated by comma. For
              example "192.168.1.5/24, 10.1.0.5/24". The addresses are
              listed in decreasing priority, meaning the first address
              will be the primary address.

              Format: a comma separated list of addresses

          dad-timeout
              Timeout in milliseconds used to check for the presence
              of duplicate IP addresses on the network. If an address
              conflict is detected, the activation will fail. A zero
              value means that no duplicate address detection is

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              performed, -1 means the default value (either
              configuration ipvx.dad-timeout override or zero). A
              value greater than zero is a timeout in milliseconds.
              The property is currently implemented only for IPv4.

              Format: int32

          dhcp-client-id
              A string sent to the DHCP server to identify the local
              machine which the DHCP server may use to customize the
              DHCP lease and options. When the property is a hex
              string ('aa:bb:cc') it is interpreted as a binary client
              ID, in which case the first byte is assumed to be the
              'type' field as per RFC 2132 section 9.14 and the
              remaining bytes may be an hardware address (e.g.
              '01:xx:xx:xx:xx:xx:xx' where 1 is the Ethernet ARP type
              and the rest is a MAC address). If the property is not a
              hex string it is considered as a non-hardware-address
              client ID and the 'type' field is set to 0. The special
              values "mac" and "perm-mac" are supported, which use the
              current or permanent MAC address of the device to
              generate a client identifier with type ethernet (01).
              Currently, these options only work for ethernet type of
              links. The special value "ipv6-duid" uses the DUID from
              "ipv6.dhcp-duid" property as an RFC4361-compliant client
              identifier. As IAID it uses "ipv4.dhcp-iaid" and falls
              back to "ipv6.dhcp-iaid" if unset. The special value
              "duid" generates a RFC4361-compliant client identifier
              based on "ipv4.dhcp-iaid" and uses a DUID generated by
              hashing /etc/machine-id. The special value "stable" is
              supported to generate a type 0 client identifier based
              on the stable-id (see connection.stable-id) and a
              per-host key. If you set the stable-id, you may want to
              include the "${DEVICE}" or "${MAC}" specifier to get a
              per-device key. If unset, a globally configured default
              is used. If still unset, the default depends on the DHCP
              plugin.

              Format: string

          dhcp-fqdn
              If the "dhcp-send-hostname" property is TRUE, then the
              specified FQDN will be sent to the DHCP server when
              acquiring a lease. This property and "dhcp-hostname" are
              mutually exclusive and cannot be set at the same time.

              Format: string

          dhcp-hostname
              If the "dhcp-send-hostname" property is TRUE, then the
              specified name will be sent to the DHCP server when
              acquiring a lease. This property and "dhcp-fqdn" are

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              mutually exclusive and cannot be set at the same time.

              Format: string

          dhcp-hostname-flags
              Flags for the DHCP hostname and FQDN. Currently, this
              property only includes flags to control the FQDN flags
              set in the DHCP FQDN option. Supported FQDN flags are
              NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
              NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) and
              NM_DHCP_HOSTNAME_FLAG_FQDN_NO_UPDATE (0x4). When no FQDN
              flag is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS
              (0x8) is set, the DHCP FQDN option will contain no flag.
              Otherwise, if no FQDN flag is set and
              NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is not set,
              the standard FQDN flags are set in the request:
              NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
              NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) for IPv4 and
              NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1) for IPv6.
              When this property is set to the default value
              NM_DHCP_HOSTNAME_FLAG_NONE (0x0), a global default is
              looked up in NetworkManager configuration. If that value
              is unset or also NM_DHCP_HOSTNAME_FLAG_NONE (0x0), then
              the standard FQDN flags described above are sent in the
              DHCP requests.

              Format: uint32

          dhcp-iaid
              A string containing the "Identity Association
              Identifier" (IAID) used by the DHCP client. The property
              is a 32-bit decimal value or a special value among
              "mac", "perm-mac", "ifname" and "stable". When set to
              "mac" (or "perm-mac"), the last 4 bytes of the current
              (or permanent) MAC address are used as IAID. When set to
              "ifname", the IAID is computed by hashing the interface
              name. The special value "stable" can be used to generate
              an IAID based on the stable-id (see
              connection.stable-id), a per-host key and the interface
              name. When the property is unset, the value from global
              configuration is used; if no global default is set then
              the IAID is assumed to be "ifname". Note that at the
              moment this property is ignored for IPv6 by dhclient,
              which always derives the IAID from the MAC address.

              Format: string

          dhcp-reject-servers
              Array of servers from which DHCP offers must be
              rejected. This property is useful to avoid getting a
              lease from misconfigured or rogue servers. For DHCPv4,
              each element must be an IPv4 address, optionally

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              followed by a slash and a prefix length (e.g.
              "192.168.122.0/24"). This property is currently not
              implemented for DHCPv6.

              Format: array of string

          dhcp-send-hostname
              If TRUE, a hostname is sent to the DHCP server when
              acquiring a lease. Some DHCP servers use this hostname
              to update DNS databases, essentially providing a static
              hostname for the computer. If the "dhcp-hostname"
              property is NULL and this property is TRUE, the current
              persistent hostname of the computer is sent.

              Format: boolean

          dhcp-timeout
              A timeout for a DHCP transaction in seconds. If zero
              (the default), a globally configured default is used. If
              still unspecified, a device specific timeout is used
              (usually 45 seconds). Set to 2147483647 (MAXINT32) for
              infinity.

              Format: int32

          dhcp-vendor-class-identifier
              The Vendor Class Identifier DHCP option (60). Special
              characters in the data string may be escaped using
              C-style escapes, nevertheless this property cannot
              contain nul bytes. If the per-profile value is
              unspecified (the default), a global connection default
              gets consulted. If still unspecified, the DHCP option is
              not sent to the server. Since 1.28

              Format: string

          dns
              Array of IP addresses of DNS servers.

              Format: array of uint32

          dns-options
              Array of DNS options as described in man 5 resolv.conf.
              NULL means that the options are unset and left at the
              default. In this case NetworkManager will use default
              options. This is distinct from an empty list of
              properties. The currently supported options are
              "attempts", "debug", "edns0", "inet6", "ip6-bytestring",
              "ip6-dotint", "ndots", "no-check-names",
              "no-ip6-dotint", "no-reload", "no-tld-query", "rotate",
              "single-request", "single-request-reopen", "timeout",
              "trust-ad", "use-vc". The "trust-ad" setting is only

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              honored if the profile contributes name servers to
              resolv.conf, and if all contributing profiles have
              "trust-ad" enabled. When using a caching DNS plugin
              (dnsmasq or systemd-resolved in NetworkManager.conf)
              then "edns0" and "trust-ad" are automatically added.

              Format: array of string

          dns-priority
              DNS servers priority. The relative priority for DNS
              servers specified by this setting. A lower numerical
              value is better (higher priority). Negative values have
              the special effect of excluding other configurations
              with a greater numerical priority value; so in presence
              of at least one negative priority, only DNS servers from
              connections with the lowest priority value will be used.
              To avoid all DNS leaks, set the priority of the profile
              that should be used to the most negative value of all
              active connections profiles. Zero selects a globally
              configured default value. If the latter is missing or
              zero too, it defaults to 50 for VPNs (including
              WireGuard) and 100 for other connections. Note that the
              priority is to order DNS settings for multiple active
              connections. It does not disambiguate multiple DNS
              servers within the same connection profile. When
              multiple devices have configurations with the same
              priority, VPNs will be considered first, then devices
              with the best (lowest metric) default route and then all
              other devices. When using dns=default, servers with
              higher priority will be on top of resolv.conf. To
              prioritize a given server over another one within the
              same connection, just specify them in the desired order.
              Note that commonly the resolver tries name servers in
              /etc/resolv.conf in the order listed, proceeding with
              the next server in the list on failure. See for example
              the "rotate" option of the dns-options setting. If there
              are any negative DNS priorities, then only name servers
              from the devices with that lowest priority will be
              considered. When using a DNS resolver that supports
              Conditional Forwarding or Split DNS (with dns=dnsmasq or
              dns=systemd-resolved settings), each connection is used
              to query domains in its search list. The search domains
              determine which name servers to ask, and the DNS
              priority is used to prioritize name servers based on the
              domain. Queries for domains not present in any search
              list are routed through connections having the '~.'
              special wildcard domain, which is added automatically to
              connections with the default route (or can be added
              manually). When multiple connections specify the same
              domain, the one with the best priority (lowest numerical
              value) wins. If a sub domain is configured on another
              interface it will be accepted regardless the priority,

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              unless parent domain on the other interface has a
              negative priority, which causes the sub domain to be
              shadowed. With Split DNS one can avoid undesired DNS
              leaks by properly configuring DNS priorities and the
              search domains, so that only name servers of the desired
              interface are configured.

              Format: int32

          dns-search
              Array of DNS search domains. Domains starting with a
              tilde ('~') are considered 'routing' domains and are
              used only to decide the interface over which a query
              must be forwarded; they are not used to complete
              unqualified host names. When using a DNS plugin that
              supports Conditional Forwarding or Split DNS, then the
              search domains specify which name servers to query. This
              makes the behavior different from running with plain
              /etc/resolv.conf. For more information see also the
              dns-priority setting.

              Format: array of string

          gateway
              Alias: gw4

              The gateway associated with this configuration. This is
              only meaningful if "addresses" is also set. The
              gateway's main purpose is to control the next hop of the
              standard default route on the device. Hence, the gateway
              property conflicts with "never-default" and will be
              automatically dropped if the IP configuration is set to
              never-default. As an alternative to set the gateway,
              configure a static default route with /0 as prefix
              length.

              Format: string

          ignore-auto-dns
              When "method" is set to "auto" and this property to
              TRUE, automatically configured name servers and search
              domains are ignored and only name servers and search
              domains specified in the "dns" and "dns-search"
              properties, if any, are used.

              Format: boolean

          ignore-auto-routes
              When "method" is set to "auto" and this property to
              TRUE, automatically configured routes are ignored and
              only routes specified in the "routes" property, if any,
              are used.

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              Format: boolean

          may-fail
              If TRUE, allow overall network configuration to proceed
              even if the configuration specified by this property
              times out. Note that at least one IP configuration must
              succeed or overall network configuration will still
              fail. For example, in IPv6-only networks, setting this
              property to TRUE on the NMSettingIP4Config allows the
              overall network configuration to succeed if IPv4
              configuration fails but IPv6 configuration completes
              successfully.

              Format: boolean

          method
              IP configuration method. NMSettingIP4Config and
              NMSettingIP6Config both support "disabled", "auto",
              "manual", and "link-local". See the subclass-specific
              documentation for other values. In general, for the
              "auto" method, properties such as "dns" and "routes"
              specify information that is added on to the information
              returned from automatic configuration. The
              "ignore-auto-routes" and "ignore-auto-dns" properties
              modify this behavior. For methods that imply no upstream
              network, such as "shared" or "link-local", these
              properties must be empty. For IPv4 method "shared", the
              IP subnet can be configured by adding one manual IPv4
              address or otherwise 10.42.x.0/24 is chosen. Note that
              the shared method must be configured on the interface
              which shares the internet to a subnet, not on the uplink
              which is shared.

              Format: string

          never-default
              If TRUE, this connection will never be the default
              connection for this IP type, meaning it will never be
              assigned the default route by NetworkManager.

              Format: boolean

          required-timeout
              The minimum time interval in milliseconds for which
              dynamic IP configuration should be tried before the
              connection succeeds. This property is useful for example
              if both IPv4 and IPv6 are enabled and are allowed to
              fail. Normally the connection succeeds as soon as one of
              the two address families completes; by setting a
              required timeout for e.g. IPv4, one can ensure that even
              if IP6 succeeds earlier than IPv4, NetworkManager waits
              some time for IPv4 before the connection becomes active.

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              Note that if "may-fail" is FALSE for the same address
              family, this property has no effect as NetworkManager
              needs to wait for the full DHCP timeout. A zero value
              means that no required timeout is present, -1 means the
              default value (either configuration
              ipvx.required-timeout override or zero).

              Format: int32

          route-metric
              The default metric for routes that don't explicitly
              specify a metric. The default value -1 means that the
              metric is chosen automatically based on the device type.
              The metric applies to dynamic routes, manual (static)
              routes that don't have an explicit metric setting,
              address prefix routes, and the default route. Note that
              for IPv6, the kernel accepts zero (0) but coerces it to
              1024 (user default). Hence, setting this property to
              zero effectively mean setting it to 1024. For IPv4, zero
              is a regular value for the metric.

              Format: int64

          route-table
              Enable policy routing (source routing) and set the
              routing table used when adding routes. This affects all
              routes, including device-routes, IPv4LL, DHCP, SLAAC,
              default-routes and static routes. But note that static
              routes can individually overwrite the setting by
              explicitly specifying a non-zero routing table. If the
              table setting is left at zero, it is eligible to be
              overwritten via global configuration. If the property is
              zero even after applying the global configuration value,
              policy routing is disabled for the address family of
              this connection. Policy routing disabled means that
              NetworkManager will add all routes to the main table
              (except static routes that explicitly configure a
              different table). Additionally, NetworkManager will not
              delete any extraneous routes from tables except the main
              table. This is to preserve backward compatibility for
              users who manage routing tables outside of
              NetworkManager.

              Format: uint32

          routes
              A list of IPv4 destination addresses, prefix length,
              optional IPv4 next hop addresses, optional route metric,
              optional attribute. The valid syntax is: "ip[/prefix]
              [next-hop] [metric]
              [attribute=val]...[,ip[/prefix]...]". For example
              "192.0.2.0/24 10.1.1.1 77, 198.51.100.0/24".

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              Format: a comma separated list of routes

          routing-rules

        ipv6 setting
          IPv6 Settings.

          Properties:

          addr-gen-mode
              Configure method for creating the address for use with
              RFC4862 IPv6 Stateless Address Autoconfiguration. The
              permitted values are:
              NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64 (0) or
              NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY (1).
              If the property is set to EUI64, the addresses will be
              generated using the interface tokens derived from
              hardware address. This makes the host part of the
              address to stay constant, making it possible to track
              host's presence when it changes networks. The address
              changes when the interface hardware is replaced. The
              value of stable-privacy enables use of cryptographically
              secure hash of a secret host-specific key along with the
              connection's stable-id and the network address as
              specified by RFC7217. This makes it impossible to use
              the address track host's presence, and makes the address
              stable when the network interface hardware is replaced.
              On D-Bus, the absence of an addr-gen-mode setting equals
              enabling stable-privacy. For keyfile plugin, the absence
              of the setting on disk means EUI64 so that the property
              doesn't change on upgrade from older versions. Note that
              this setting is distinct from the Privacy Extensions as
              configured by "ip6-privacy" property and it does not
              affect the temporary addresses configured with this
              option.

              Format: int32

          addresses
              Alias: ip6

              A list of IPv6 addresses and their prefix length.
              Multiple addresses can be separated by comma. For
              example "2001:db8:85a3::8a2e:370:7334/64,
              2001:db8:85a3::5/64". The addresses are listed in
              increasing priority, meaning the last address will be
              the primary address.

              Format: a comma separated list of addresses

          dhcp-duid
              A string containing the DHCPv6 Unique Identifier (DUID)

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              used by the dhcp client to identify itself to DHCPv6
              servers (RFC 3315). The DUID is carried in the Client
              Identifier option. If the property is a hex string
              ('aa:bb:cc') it is interpreted as a binary DUID and
              filled as an opaque value in the Client Identifier
              option. The special value "lease" will retrieve the DUID
              previously used from the lease file belonging to the
              connection. If no DUID is found and "dhclient" is the
              configured dhcp client, the DUID is searched in the
              system-wide dhclient lease file. If still no DUID is
              found, or another dhcp client is used, a global and
              permanent DUID-UUID (RFC 6355) will be generated based
              on the machine-id. The special values "llt" and "ll"
              will generate a DUID of type LLT or LL (see RFC 3315)
              based on the current MAC address of the device. In order
              to try providing a stable DUID-LLT, the time field will
              contain a constant timestamp that is used globally (for
              all profiles) and persisted to disk. The special values
              "stable-llt", "stable-ll" and "stable-uuid" will
              generate a DUID of the corresponding type, derived from
              the connection's stable-id and a per-host unique key.
              You may want to include the "${DEVICE}" or "${MAC}"
              specifier in the stable-id, in case this profile gets
              activated on multiple devices. So, the link-layer
              address of "stable-ll" and "stable-llt" will be a
              generated address derived from the stable id. The
              DUID-LLT time value in the "stable-llt" option will be
              picked among a static timespan of three years (the upper
              bound of the interval is the same constant timestamp
              used in "llt"). When the property is unset, the global
              value provided for "ipv6.dhcp-duid" is used. If no
              global value is provided, the default "lease" value is
              assumed.

              Format: string

          dhcp-hostname
              If the "dhcp-send-hostname" property is TRUE, then the
              specified name will be sent to the DHCP server when
              acquiring a lease. This property and "dhcp-fqdn" are
              mutually exclusive and cannot be set at the same time.

              Format: string

          dhcp-hostname-flags
              Flags for the DHCP hostname and FQDN. Currently, this
              property only includes flags to control the FQDN flags
              set in the DHCP FQDN option. Supported FQDN flags are
              NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
              NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) and
              NM_DHCP_HOSTNAME_FLAG_FQDN_NO_UPDATE (0x4). When no FQDN
              flag is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS

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              (0x8) is set, the DHCP FQDN option will contain no flag.
              Otherwise, if no FQDN flag is set and
              NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is not set,
              the standard FQDN flags are set in the request:
              NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
              NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) for IPv4 and
              NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1) for IPv6.
              When this property is set to the default value
              NM_DHCP_HOSTNAME_FLAG_NONE (0x0), a global default is
              looked up in NetworkManager configuration. If that value
              is unset or also NM_DHCP_HOSTNAME_FLAG_NONE (0x0), then
              the standard FQDN flags described above are sent in the
              DHCP requests.

              Format: uint32

          dhcp-iaid
              A string containing the "Identity Association
              Identifier" (IAID) used by the DHCP client. The property
              is a 32-bit decimal value or a special value among
              "mac", "perm-mac", "ifname" and "stable". When set to
              "mac" (or "perm-mac"), the last 4 bytes of the current
              (or permanent) MAC address are used as IAID. When set to
              "ifname", the IAID is computed by hashing the interface
              name. The special value "stable" can be used to generate
              an IAID based on the stable-id (see
              connection.stable-id), a per-host key and the interface
              name. When the property is unset, the value from global
              configuration is used; if no global default is set then
              the IAID is assumed to be "ifname". Note that at the
              moment this property is ignored for IPv6 by dhclient,
              which always derives the IAID from the MAC address.

              Format: string

          dhcp-send-hostname
              If TRUE, a hostname is sent to the DHCP server when
              acquiring a lease. Some DHCP servers use this hostname
              to update DNS databases, essentially providing a static
              hostname for the computer. If the "dhcp-hostname"
              property is NULL and this property is TRUE, the current
              persistent hostname of the computer is sent.

              Format: boolean

          dhcp-timeout
              A timeout for a DHCP transaction in seconds. If zero
              (the default), a globally configured default is used. If
              still unspecified, a device specific timeout is used
              (usually 45 seconds). Set to 2147483647 (MAXINT32) for
              infinity.

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              Format: int32

          dns
              Array of IP addresses of DNS servers.

              Format: array of byte array

          dns-options
              Array of DNS options as described in man 5 resolv.conf.
              NULL means that the options are unset and left at the
              default. In this case NetworkManager will use default
              options. This is distinct from an empty list of
              properties. The currently supported options are
              "attempts", "debug", "edns0", "inet6", "ip6-bytestring",
              "ip6-dotint", "ndots", "no-check-names",
              "no-ip6-dotint", "no-reload", "no-tld-query", "rotate",
              "single-request", "single-request-reopen", "timeout",
              "trust-ad", "use-vc". The "trust-ad" setting is only
              honored if the profile contributes name servers to
              resolv.conf, and if all contributing profiles have
              "trust-ad" enabled. When using a caching DNS plugin
              (dnsmasq or systemd-resolved in NetworkManager.conf)
              then "edns0" and "trust-ad" are automatically added.

              Format: array of string

          dns-priority
              DNS servers priority. The relative priority for DNS
              servers specified by this setting. A lower numerical
              value is better (higher priority). Negative values have
              the special effect of excluding other configurations
              with a greater numerical priority value; so in presence
              of at least one negative priority, only DNS servers from
              connections with the lowest priority value will be used.
              To avoid all DNS leaks, set the priority of the profile
              that should be used to the most negative value of all
              active connections profiles. Zero selects a globally
              configured default value. If the latter is missing or
              zero too, it defaults to 50 for VPNs (including
              WireGuard) and 100 for other connections. Note that the
              priority is to order DNS settings for multiple active
              connections. It does not disambiguate multiple DNS
              servers within the same connection profile. When
              multiple devices have configurations with the same
              priority, VPNs will be considered first, then devices
              with the best (lowest metric) default route and then all
              other devices. When using dns=default, servers with
              higher priority will be on top of resolv.conf. To
              prioritize a given server over another one within the
              same connection, just specify them in the desired order.
              Note that commonly the resolver tries name servers in
              /etc/resolv.conf in the order listed, proceeding with

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              the next server in the list on failure. See for example
              the "rotate" option of the dns-options setting. If there
              are any negative DNS priorities, then only name servers
              from the devices with that lowest priority will be
              considered. When using a DNS resolver that supports
              Conditional Forwarding or Split DNS (with dns=dnsmasq or
              dns=systemd-resolved settings), each connection is used
              to query domains in its search list. The search domains
              determine which name servers to ask, and the DNS
              priority is used to prioritize name servers based on the
              domain. Queries for domains not present in any search
              list are routed through connections having the '~.'
              special wildcard domain, which is added automatically to
              connections with the default route (or can be added
              manually). When multiple connections specify the same
              domain, the one with the best priority (lowest numerical
              value) wins. If a sub domain is configured on another
              interface it will be accepted regardless the priority,
              unless parent domain on the other interface has a
              negative priority, which causes the sub domain to be
              shadowed. With Split DNS one can avoid undesired DNS
              leaks by properly configuring DNS priorities and the
              search domains, so that only name servers of the desired
              interface are configured.

              Format: int32

          dns-search
              Array of DNS search domains. Domains starting with a
              tilde ('~') are considered 'routing' domains and are
              used only to decide the interface over which a query
              must be forwarded; they are not used to complete
              unqualified host names. When using a DNS plugin that
              supports Conditional Forwarding or Split DNS, then the
              search domains specify which name servers to query. This
              makes the behavior different from running with plain
              /etc/resolv.conf. For more information see also the
              dns-priority setting.

              Format: array of string

          gateway
              Alias: gw6

              The gateway associated with this configuration. This is
              only meaningful if "addresses" is also set. The
              gateway's main purpose is to control the next hop of the
              standard default route on the device. Hence, the gateway
              property conflicts with "never-default" and will be
              automatically dropped if the IP configuration is set to
              never-default. As an alternative to set the gateway,
              configure a static default route with /0 as prefix

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              length.

              Format: string

          ignore-auto-dns
              When "method" is set to "auto" and this property to
              TRUE, automatically configured name servers and search
              domains are ignored and only name servers and search
              domains specified in the "dns" and "dns-search"
              properties, if any, are used.

              Format: boolean

          ignore-auto-routes
              When "method" is set to "auto" and this property to
              TRUE, automatically configured routes are ignored and
              only routes specified in the "routes" property, if any,
              are used.

              Format: boolean

          ip6-privacy
              Configure IPv6 Privacy Extensions for SLAAC, described
              in RFC4941. If enabled, it makes the kernel generate a
              temporary IPv6 address in addition to the public one
              generated from MAC address via modified EUI-64. This
              enhances privacy, but could cause problems in some
              applications, on the other hand. The permitted values
              are: -1: unknown, 0: disabled, 1: enabled (prefer public
              address), 2: enabled (prefer temporary addresses).
              Having a per-connection setting set to "-1" (unknown)
              means fallback to global configuration
              "ipv6.ip6-privacy". If also global configuration is
              unspecified or set to "-1", fallback to read
              "/proc/sys/net/ipv6/conf/default/use_tempaddr". Note
              that this setting is distinct from the Stable Privacy
              addresses that can be enabled with the "addr-gen-mode"
              property's "stable-privacy" setting as another way of
              avoiding host tracking with IPv6 addresses.

              Format: NMSettingIP6ConfigPrivacy (int32)

          may-fail
              If TRUE, allow overall network configuration to proceed
              even if the configuration specified by this property
              times out. Note that at least one IP configuration must
              succeed or overall network configuration will still
              fail. For example, in IPv6-only networks, setting this
              property to TRUE on the NMSettingIP4Config allows the
              overall network configuration to succeed if IPv4
              configuration fails but IPv6 configuration completes
              successfully.

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              Format: boolean

          method
              IP configuration method. NMSettingIP4Config and
              NMSettingIP6Config both support "disabled", "auto",
              "manual", and "link-local". See the subclass-specific
              documentation for other values. In general, for the
              "auto" method, properties such as "dns" and "routes"
              specify information that is added on to the information
              returned from automatic configuration. The
              "ignore-auto-routes" and "ignore-auto-dns" properties
              modify this behavior. For methods that imply no upstream
              network, such as "shared" or "link-local", these
              properties must be empty. For IPv4 method "shared", the
              IP subnet can be configured by adding one manual IPv4
              address or otherwise 10.42.x.0/24 is chosen. Note that
              the shared method must be configured on the interface
              which shares the internet to a subnet, not on the uplink
              which is shared.

              Format: string

          never-default
              If TRUE, this connection will never be the default
              connection for this IP type, meaning it will never be
              assigned the default route by NetworkManager.

              Format: boolean

          ra-timeout
              A timeout for waiting Router Advertisements in seconds.
              If zero (the default), a globally configured default is
              used. If still unspecified, the timeout depends on the
              sysctl settings of the device. Set to 2147483647
              (MAXINT32) for infinity.

              Format: int32

          required-timeout
              The minimum time interval in milliseconds for which
              dynamic IP configuration should be tried before the
              connection succeeds. This property is useful for example
              if both IPv4 and IPv6 are enabled and are allowed to
              fail. Normally the connection succeeds as soon as one of
              the two address families completes; by setting a
              required timeout for e.g. IPv4, one can ensure that even
              if IP6 succeeds earlier than IPv4, NetworkManager waits
              some time for IPv4 before the connection becomes active.
              Note that if "may-fail" is FALSE for the same address
              family, this property has no effect as NetworkManager
              needs to wait for the full DHCP timeout. A zero value
              means that no required timeout is present, -1 means the

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              default value (either configuration
              ipvx.required-timeout override or zero).

              Format: int32

          route-metric
              The default metric for routes that don't explicitly
              specify a metric. The default value -1 means that the
              metric is chosen automatically based on the device type.
              The metric applies to dynamic routes, manual (static)
              routes that don't have an explicit metric setting,
              address prefix routes, and the default route. Note that
              for IPv6, the kernel accepts zero (0) but coerces it to
              1024 (user default). Hence, setting this property to
              zero effectively mean setting it to 1024. For IPv4, zero
              is a regular value for the metric.

              Format: int64

          route-table
              Enable policy routing (source routing) and set the
              routing table used when adding routes. This affects all
              routes, including device-routes, IPv4LL, DHCP, SLAAC,
              default-routes and static routes. But note that static
              routes can individually overwrite the setting by
              explicitly specifying a non-zero routing table. If the
              table setting is left at zero, it is eligible to be
              overwritten via global configuration. If the property is
              zero even after applying the global configuration value,
              policy routing is disabled for the address family of
              this connection. Policy routing disabled means that
              NetworkManager will add all routes to the main table
              (except static routes that explicitly configure a
              different table). Additionally, NetworkManager will not
              delete any extraneous routes from tables except the main
              table. This is to preserve backward compatibility for
              users who manage routing tables outside of
              NetworkManager.

              Format: uint32

          routes
              Array of IP routes.

              Format: array of legacy IPv6 route struct

          routing-rules

          token
              Configure the token for
              draft-chown-6man-tokenised-ipv6-identifiers-02 IPv6
              tokenized interface identifiers. Useful with eui64

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              addr-gen-mode.

              Format: string

        ip-tunnel setting
          IP Tunneling Settings.

          Properties:

          encapsulation-limit
              How many additional levels of encapsulation are
              permitted to be prepended to packets. This property
              applies only to IPv6 tunnels.

              Format: uint32

          flags
              Tunnel flags. Currently, the following values are
              supported: NM_IP_TUNNEL_FLAG_IP6_IGN_ENCAP_LIMIT (0x1),
              NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_TCLASS (0x2),
              NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FLOWLABEL (0x4),
              NM_IP_TUNNEL_FLAG_IP6_MIP6_DEV (0x8),
              NM_IP_TUNNEL_FLAG_IP6_RCV_DSCP_COPY (0x10),
              NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FWMARK (0x20). They are
              valid only for IPv6 tunnels.

              Format: uint32

          flow-label
              The flow label to assign to tunnel packets. This
              property applies only to IPv6 tunnels.

              Format: uint32

          input-key
              The key used for tunnel input packets; the property is
              valid only for certain tunnel modes (GRE, IP6GRE). If
              empty, no key is used.

              Format: string

          local
              Alias: local

              The local endpoint of the tunnel; the value can be
              empty, otherwise it must contain an IPv4 or IPv6
              address.

              Format: string

          mode
              Alias: mode

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              The tunneling mode, for example NM_IP_TUNNEL_MODE_IPIP
              (1) or NM_IP_TUNNEL_MODE_GRE (2).

              Format: uint32

          mtu
              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple
              fragments.

              Format: uint32

          output-key
              The key used for tunnel output packets; the property is
              valid only for certain tunnel modes (GRE, IP6GRE). If
              empty, no key is used.

              Format: string

          parent
              Alias: dev

              If given, specifies the parent interface name or parent
              connection UUID the new device will be bound to so that
              tunneled packets will only be routed via that interface.

              Format: string

          path-mtu-discovery
              Whether to enable Path MTU Discovery on this tunnel.

              Format: boolean

          remote
              Alias: remote

              The remote endpoint of the tunnel; the value must
              contain an IPv4 or IPv6 address.

              Format: string

          tos
              The type of service (IPv4) or traffic class (IPv6) field
              to be set on tunneled packets.

              Format: uint32

          ttl
              The TTL to assign to tunneled packets. 0 is a special
              value meaning that packets inherit the TTL value.

              Format: uint32

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        macsec setting
          MACSec Settings.

          Properties:

          encrypt
              Alias: encrypt

              Whether the transmitted traffic must be encrypted.

              Format: boolean

          mka-cak
              Alias: cak

              The pre-shared CAK (Connectivity Association Key) for
              MACsec Key Agreement.

              Format: string

          mka-cak-flags
              Flags indicating how to handle the "mka-cak" property.
              See the section called lqSecret flag types:rq for flag
              values.

              Format: NMSettingSecretFlags (uint32)

          mka-ckn
              Alias: ckn

              The pre-shared CKN (Connectivity-association Key Name)
              for MACsec Key Agreement.

              Format: string

          mode
              Alias: mode

              Specifies how the CAK (Connectivity Association Key) for
              MKA (MACsec Key Agreement) is obtained.

              Format: int32

          parent
              Alias: dev

              If given, specifies the parent interface name or parent
              connection UUID from which this MACSEC interface should
              be created. If this property is not specified, the
              connection must contain an "802-3-ethernet" setting with
              a "mac-address" property.

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              Format: string

          port
              Alias: port

              The port component of the SCI (Secure Channel
              Identifier), between 1 and 65534.

              Format: int32

          send-sci
              Specifies whether the SCI (Secure Channel Identifier) is
              included in every packet.

              Format: boolean

          validation
              Specifies the validation mode for incoming frames.

              Format: int32

        macvlan setting
          MAC VLAN Settings.

          Properties:

          mode
              Alias: mode

              The macvlan mode, which specifies the communication
              mechanism between multiple macvlans on the same lower
              device.

              Format: uint32

          parent
              Alias: dev

              If given, specifies the parent interface name or parent
              connection UUID from which this MAC-VLAN interface
              should be created. If this property is not specified,
              the connection must contain an "802-3-ethernet" setting
              with a "mac-address" property.

              Format: string

          promiscuous
              Whether the interface should be put in promiscuous mode.

              Format: boolean

          tap

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              Alias: tap

              Whether the interface should be a MACVTAP.

              Format: boolean

        match setting
          Match settings.

          Properties:

          driver
              A list of driver names to match. Each element is a shell
              wildcard pattern. See NMSettingMatch:interface-name for
              how special characters '|', '&', '!' and '\' are used
              for optional and mandatory matches and inverting the
              pattern.

              Format: array of string

          interface-name
              A list of interface names to match. Each element is a
              shell wildcard pattern. An element can be prefixed with
              a pipe symbol (|) or an ampersand (&). The former means
              that the element is optional and the latter means that
              it is mandatory. If there are any optional elements,
              than the match evaluates to true if at least one of the
              optional element matches (logical OR). If there are any
              mandatory elements, then they all must match (logical
              AND). By default, an element is optional. This means
              that an element "foo" behaves the same as "|foo". An
              element can also be inverted with exclamation mark (!)
              between the pipe symbol (or the ampersand) and before
              the pattern. Note that "!foo" is a shortcut for the
              mandatory match "&!foo". Finally, a backslash can be
              used at the beginning of the element (after the optional
              special characters) to escape the start of the pattern.
              For example, "&\!a" is an mandatory match for literally
              "!a".

              Format: array of string

          kernel-command-line
              A list of kernel command line arguments to match. This
              may be used to check whether a specific kernel command
              line option is set (or unset, if prefixed with the
              exclamation mark). The argument must either be a single
              word, or an assignment (i.e. two words, joined by "=").
              In the former case the kernel command line is searched
              for the word appearing as is, or as left hand side of an
              assignment. In the latter case, the exact assignment is
              looked for with right and left hand side matching.

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              Wildcard patterns are not supported. See
              NMSettingMatch:interface-name for how special characters
              '|', '&', '!' and '\' are used for optional and
              mandatory matches and inverting the match.

              Format: array of string

          path
              A list of paths to match against the ID_PATH udev
              property of devices. ID_PATH represents the topological
              persistent path of a device. It typically contains a
              subsystem string (pci, usb, platform, etc.) and a
              subsystem-specific identifier. For PCI devices the path
              has the form "pci-$domain:$bus:$device.$function", where
              each variable is an hexadecimal value; for example
              "pci-0000:0a:00.0". The path of a device can be obtained
              with "udevadm info /sys/class/net/$dev | grep ID_PATH="
              or by looking at the "path" property exported by
              NetworkManager ("nmcli -f general.path device show
              $dev"). Each element of the list is a shell wildcard
              pattern. See NMSettingMatch:interface-name for how
              special characters '|', '&', '!' and '\' are used for
              optional and mandatory matches and inverting the
              pattern.

              Format: array of string

        802-11-olpc-mesh setting
          Alias: olpc-mesh

          OLPC Wireless Mesh Settings.

          Properties:

          channel
              Alias: channel

              Channel on which the mesh network to join is located.

              Format: uint32

          dhcp-anycast-address
              Alias: dhcp-anycast

              Anycast DHCP MAC address used when requesting an IP
              address via DHCP. The specific anycast address used
              determines which DHCP server class answers the request.
              This is currently only implemented by dhclient DHCP
              plugin.

              Format: byte array

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          ssid
              Alias: ssid

              SSID of the mesh network to join.

              Format: byte array

        ovs-bridge setting
          OvsBridge Link Settings.

          Properties:

          datapath-type
              The data path type. One of "system", "netdev" or empty.

              Format: string

          fail-mode
              The bridge failure mode. One of "secure", "standalone"
              or empty.

              Format: string

          mcast-snooping-enable
              Enable or disable multicast snooping.

              Format: boolean

          rstp-enable
              Enable or disable RSTP.

              Format: boolean

          stp-enable
              Enable or disable STP.

              Format: boolean

        ovs-dpdk setting
          OvsDpdk Link Settings.

          Properties:

          devargs
              Open vSwitch DPDK device arguments.

              Format: string

        ovs-interface setting
          Open vSwitch Interface Settings.

          Properties:

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          type
              The interface type. Either "internal", "system",
              "patch", "dpdk", or empty.

              Format: string

        ovs-patch setting
          OvsPatch Link Settings.

          Properties:

          peer
              Specifies the name of the interface for the other side
              of the patch. The patch on the other side must also set
              this interface as peer.

              Format: string

        ovs-port setting
          OvsPort Link Settings.

          Properties:

          bond-downdelay
              The time port must be inactive in order to be considered
              down.

              Format: uint32

          bond-mode
              Bonding mode. One of "active-backup", "balance-slb", or
              "balance-tcp".

              Format: string

          bond-updelay
              The time port must be active before it starts forwarding
              traffic.

              Format: uint32

          lacp
              LACP mode. One of "active", "off", or "passive".

              Format: string

          tag
              The VLAN tag in the range 0-4095.

              Format: uint32

          vlan-mode

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              The VLAN mode. One of "access", "native-tagged",
              "native-untagged", "trunk" or unset.

              Format: string

        ppp setting
          Point-to-Point Protocol Settings.

          Properties:

          baud
              If non-zero, instruct pppd to set the serial port to the
              specified baudrate. This value should normally be left
              as 0 to automatically choose the speed.

              Format: uint32

          crtscts
              If TRUE, specify that pppd should set the serial port to
              use hardware flow control with RTS and CTS signals. This
              value should normally be set to FALSE.

              Format: boolean

          lcp-echo-failure
              If non-zero, instruct pppd to presume the connection to
              the peer has failed if the specified number of LCP
              echo-requests go unanswered by the peer. The
              "lcp-echo-interval" property must also be set to a
              non-zero value if this property is used.

              Format: uint32

          lcp-echo-interval
              If non-zero, instruct pppd to send an LCP echo-request
              frame to the peer every n seconds (where n is the
              specified value). Note that some PPP peers will respond
              to echo requests and some will not, and it is not
              possible to autodetect this.

              Format: uint32

          mppe-stateful
              If TRUE, stateful MPPE is used. See pppd documentation
              for more information on stateful MPPE.

              Format: boolean

          mru
              If non-zero, instruct pppd to request that the peer send
              packets no larger than the specified size. If non-zero,
              the MRU should be between 128 and 16384.

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              Format: uint32

          mtu
              If non-zero, instruct pppd to send packets no larger
              than the specified size.

              Format: uint32

          no-vj-comp
              If TRUE, Van Jacobsen TCP header compression will not be
              requested.

              Format: boolean

          noauth
              If TRUE, do not require the other side (usually the PPP
              server) to authenticate itself to the client. If FALSE,
              require authentication from the remote side. In almost
              all cases, this should be TRUE.

              Format: boolean

          nobsdcomp
              If TRUE, BSD compression will not be requested.

              Format: boolean

          nodeflate
              If TRUE, "deflate" compression will not be requested.

              Format: boolean

          refuse-chap
              If TRUE, the CHAP authentication method will not be
              used.

              Format: boolean

          refuse-eap
              If TRUE, the EAP authentication method will not be used.

              Format: boolean

          refuse-mschap
              If TRUE, the MSCHAP authentication method will not be
              used.

              Format: boolean

          refuse-mschapv2
              If TRUE, the MSCHAPv2 authentication method will not be
              used.

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              Format: boolean

          refuse-pap
              If TRUE, the PAP authentication method will not be used.

              Format: boolean

          require-mppe
              If TRUE, MPPE (Microsoft Point-to-Point Encryption) will
              be required for the PPP session. If either 64-bit or
              128-bit MPPE is not available the session will fail.
              Note that MPPE is not used on mobile broadband
              connections.

              Format: boolean

          require-mppe-128
              If TRUE, 128-bit MPPE (Microsoft Point-to-Point
              Encryption) will be required for the PPP session, and
              the "require-mppe" property must also be set to TRUE. If
              128-bit MPPE is not available the session will fail.

              Format: boolean

        pppoe setting
          PPP-over-Ethernet Settings.

          Properties:

          parent
              Alias: parent

              If given, specifies the parent interface name on which
              this PPPoE connection should be created. If this
              property is not specified, the connection is activated
              on the interface specified in "interface-name" of
              NMSettingConnection.

              Format: string

          password
              Alias: password

              Password used to authenticate with the PPPoE service.

              Format: string

          password-flags
              Flags indicating how to handle the "password" property.
              See the section called lqSecret flag types:rq for flag
              values.

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              Format: NMSettingSecretFlags (uint32)

          service
              Alias: service

              If specified, instruct PPPoE to only initiate sessions
              with access concentrators that provide the specified
              service. For most providers, this should be left blank.
              It is only required if there are multiple access
              concentrators or a specific service is known to be
              required.

              Format: string

          username
              Alias: username

              Username used to authenticate with the PPPoE service.

              Format: string

        proxy setting
          WWW Proxy Settings.

          Properties:

          browser-only
              Alias: browser-only

              Whether the proxy configuration is for browser only.

              Format: boolean

          method
              Alias: method

              Method for proxy configuration, Default is
              NM_SETTING_PROXY_METHOD_NONE (0)

              Format: int32

          pac-script
              Alias: pac-script

              PAC script for the connection.

              Format: string

          pac-url
              Alias: pac-url

              PAC URL for obtaining PAC file.

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              Format: string

        serial setting
          Serial Link Settings.

          Properties:

          baud
              Speed to use for communication over the serial port.
              Note that this value usually has no effect for mobile
              broadband modems as they generally ignore speed settings
              and use the highest available speed.

              Format: uint32

          bits
              Byte-width of the serial communication. The 8 in "8n1"
              for example.

              Format: uint32

          parity
              Parity setting of the serial port.

              Format: NMSettingSerialParity (byte)

          send-delay
              Time to delay between each byte sent to the modem, in
              microseconds.

              Format: uint64

          stopbits
              Number of stop bits for communication on the serial
              port. Either 1 or 2. The 1 in "8n1" for example.

              Format: uint32

        sriov setting
          SR-IOV settings.

          Properties:

          autoprobe-drivers
              Whether to autoprobe virtual functions by a compatible
              driver. If set to NM_TERNARY_TRUE (1), the kernel will
              try to bind VFs to a compatible driver and if this
              succeeds a new network interface will be instantiated
              for each VF. If set to NM_TERNARY_FALSE (0), VFs will
              not be claimed and no network interfaces will be created
              for them. When set to NM_TERNARY_DEFAULT (-1), the
              global default is used; in case the global default is

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              unspecified it is assumed to be NM_TERNARY_TRUE (1).

              Format: NMTernary (int32)

          total-vfs
              The total number of virtual functions to create. Note
              that when the sriov setting is present NetworkManager
              enforces the number of virtual functions on the
              interface (also when it is zero) during activation and
              resets it upon deactivation. To prevent any changes to
              SR-IOV parameters don't add a sriov setting to the
              connection.

              Format: uint32

          vfs
              Array of virtual function descriptors. Each VF
              descriptor is a dictionary mapping attribute names to
              GVariant values. The 'index' entry is mandatory for each
              VF. When represented as string a VF is in the form:
              "INDEX [ATTR=VALUE[ ATTR=VALUE]...]". for example: "2
              mac=00:11:22:33:44:55 spoof-check=true". Multiple VFs
              can be specified using a comma as separator. Currently,
              the following attributes are supported: mac,
              spoof-check, trust, min-tx-rate, max-tx-rate, vlans. The
              "vlans" attribute is represented as a
              semicolon-separated list of VLAN descriptors, where each
              descriptor has the form "ID[.PRIORITY[.PROTO]]". PROTO
              can be either 'q' for 802.1Q (the default) or 'ad' for
              802.1ad.

              Format: array of vardict

        tc setting
          Linux Traffic Control Settings.

          Properties:

          qdiscs
              Array of TC queueing disciplines. When the "tc" setting
              is present, qdiscs from this property are applied upon
              activation. If the property is empty, all qdiscs are
              removed and the device will only have the default qdisc
              assigned by kernel according to the
              "net.core.default_qdisc" sysctl. If the "tc" setting is
              not present, NetworkManager doesn't touch the qdiscs
              present on the interface.

              Format: array of vardict

          tfilters
              Array of TC traffic filters. When the "tc" setting is

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              present, filters from this property are applied upon
              activation. If the property is empty, NetworkManager
              removes all the filters. If the "tc" setting is not
              present, NetworkManager doesn't touch the filters
              present on the interface.

              Format: array of vardict

        team setting
          Teaming Settings.

          Properties:

          config
              Alias: config

              The JSON configuration for the team network interface.
              The property should contain raw JSON configuration data
              suitable for teamd, because the value is passed directly
              to teamd. If not specified, the default configuration is
              used. See man teamd.conf for the format details.

              Format: string

          link-watchers
              Link watchers configuration for the connection: each
              link watcher is defined by a dictionary, whose keys
              depend upon the selected link watcher. Available link
              watchers are 'ethtool', 'nsna_ping' and 'arp_ping' and
              it is specified in the dictionary with the key 'name'.
              Available keys are: ethtool: 'delay-up', 'delay-down',
              'init-wait'; nsna_ping: 'init-wait', 'interval',
              'missed-max', 'target-host'; arp_ping: all the ones in
              nsna_ping and 'source-host', 'validate-active',
              'validate-inactive', 'send-always'. See teamd.conf man
              for more details.

              Format: array of vardict

          mcast-rejoin-count
              Corresponds to the teamd mcast_rejoin.count.

              Format: int32

          mcast-rejoin-interval
              Corresponds to the teamd mcast_rejoin.interval.

              Format: int32

          notify-peers-count
              Corresponds to the teamd notify_peers.count.

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              Format: int32

          notify-peers-interval
              Corresponds to the teamd notify_peers.interval.

              Format: int32

          runner
              Corresponds to the teamd runner.name. Permitted values
              are: "roundrobin", "broadcast", "activebackup",
              "loadbalance", "lacp", "random".

              Format: string

          runner-active
              Corresponds to the teamd runner.active.

              Format: boolean

          runner-agg-select-policy
              Corresponds to the teamd runner.agg_select_policy.

              Format: string

          runner-fast-rate
              Corresponds to the teamd runner.fast_rate.

              Format: boolean

          runner-hwaddr-policy
              Corresponds to the teamd runner.hwaddr_policy.

              Format: string

          runner-min-ports
              Corresponds to the teamd runner.min_ports.

              Format: int32

          runner-sys-prio
              Corresponds to the teamd runner.sys_prio.

              Format: int32

          runner-tx-balancer
              Corresponds to the teamd runner.tx_balancer.name.

              Format: string

          runner-tx-balancer-interval
              Corresponds to the teamd runner.tx_balancer.interval.

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              Format: int32

          runner-tx-hash
              Corresponds to the teamd runner.tx_hash.

              Format: array of string

        team-port setting
          Team Port Settings.

          Properties:

          config
              Alias: config

              The JSON configuration for the team port. The property
              should contain raw JSON configuration data suitable for
              teamd, because the value is passed directly to teamd. If
              not specified, the default configuration is used. See
              man teamd.conf for the format details.

              Format: string

          lacp-key
              Corresponds to the teamd ports.PORTIFNAME.lacp_key.

              Format: int32

          lacp-prio
              Corresponds to the teamd ports.PORTIFNAME.lacp_prio.

              Format: int32

          link-watchers
              Link watchers configuration for the connection: each
              link watcher is defined by a dictionary, whose keys
              depend upon the selected link watcher. Available link
              watchers are 'ethtool', 'nsna_ping' and 'arp_ping' and
              it is specified in the dictionary with the key 'name'.
              Available keys are: ethtool: 'delay-up', 'delay-down',
              'init-wait'; nsna_ping: 'init-wait', 'interval',
              'missed-max', 'target-host'; arp_ping: all the ones in
              nsna_ping and 'source-host', 'validate-active',
              'validate-inactive', 'send-always'. See teamd.conf man
              for more details.

              Format: array of vardict

          prio
              Corresponds to the teamd ports.PORTIFNAME.prio.

              Format: int32

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          queue-id
              Corresponds to the teamd ports.PORTIFNAME.queue_id. When
              set to -1 means the parameter is skipped from the json
              config.

              Format: int32

          sticky
              Corresponds to the teamd ports.PORTIFNAME.sticky.

              Format: boolean

        tun setting
          Tunnel Settings.

          Properties:

          group
              Alias: group

              The group ID which will own the device. If set to NULL
              everyone will be able to use the device.

              Format: string

          mode
              Alias: mode

              The operating mode of the virtual device. Allowed values
              are NM_SETTING_TUN_MODE_TUN (1) to create a layer 3
              device and NM_SETTING_TUN_MODE_TAP (2) to create an
              Ethernet-like layer 2 one.

              Format: uint32

          multi-queue
              Alias: multi-queue

              If the property is set to TRUE, the interface will
              support multiple file descriptors (queues) to
              parallelize packet sending or receiving. Otherwise, the
              interface will only support a single queue.

              Format: boolean

          owner
              Alias: owner

              The user ID which will own the device. If set to NULL
              everyone will be able to use the device.

              Format: string

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          pi
              Alias: pi

              If TRUE the interface will prepend a 4 byte header
              describing the physical interface to the packets.

              Format: boolean

          vnet-hdr
              Alias: vnet-hdr

              If TRUE the IFF_VNET_HDR the tunnel packets will include
              a virtio network header.

              Format: boolean

        vlan setting
          VLAN Settings.

          Properties:

          egress-priority-map
              Alias: egress

              For outgoing packets, a list of mappings from Linux SKB
              priorities to 802.1p priorities. The mapping is given in
              the format "from:to" where both "from" and "to" are
              unsigned integers, ie "7:3".

              Format: array of string

          flags
              Alias: flags

              One or more flags which control the behavior and
              features of the VLAN interface. Flags include
              NM_VLAN_FLAG_REORDER_HEADERS (0x1) (reordering of output
              packet headers), NM_VLAN_FLAG_GVRP (0x2) (use of the
              GVRP protocol), and NM_VLAN_FLAG_LOOSE_BINDING (0x4)
              (loose binding of the interface to its master device's
              operating state). NM_VLAN_FLAG_MVRP (0x8) (use of the
              MVRP protocol). The default value of this property is
              NM_VLAN_FLAG_REORDER_HEADERS, but it used to be 0. To
              preserve backward compatibility, the default-value in
              the D-Bus API continues to be 0 and a missing property
              on D-Bus is still considered as 0.

              Format: NMVlanFlags (uint32)

          id
              Alias: id

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              The VLAN identifier that the interface created by this
              connection should be assigned. The valid range is from 0
              to 4094, without the reserved id 4095.

              Format: uint32

          ingress-priority-map
              Alias: ingress

              For incoming packets, a list of mappings from 802.1p
              priorities to Linux SKB priorities. The mapping is given
              in the format "from:to" where both "from" and "to" are
              unsigned integers, ie "7:3".

              Format: array of string

          parent
              Alias: dev

              If given, specifies the parent interface name or parent
              connection UUID from which this VLAN interface should be
              created. If this property is not specified, the
              connection must contain an "802-3-ethernet" setting with
              a "mac-address" property.

              Format: string

        vpn setting
          VPN Settings.

          Properties:

          data
              Dictionary of key/value pairs of VPN plugin specific
              data. Both keys and values must be strings.

              Format: dict of string to string

          persistent
              If the VPN service supports persistence, and this
              property is TRUE, the VPN will attempt to stay connected
              across link changes and outages, until explicitly
              disconnected.

              Format: boolean

          secrets
              Dictionary of key/value pairs of VPN plugin specific
              secrets like passwords or private keys. Both keys and
              values must be strings.

              Format: dict of string to string

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          service-type
              Alias: vpn-type

              D-Bus service name of the VPN plugin that this setting
              uses to connect to its network. i.e.
              org.freedesktop.NetworkManager.vpnc for the vpnc plugin.

              Format: string

          timeout
              Timeout for the VPN service to establish the connection.
              Some services may take quite a long time to connect.
              Value of 0 means a default timeout, which is 60 seconds
              (unless overridden by vpn.timeout in configuration
              file). Values greater than zero mean timeout in seconds.

              Format: uint32

          user-name
              Alias: user

              If the VPN connection requires a user name for
              authentication, that name should be provided here. If
              the connection is available to more than one user, and
              the VPN requires each user to supply a different name,
              then leave this property empty. If this property is
              empty, NetworkManager will automatically supply the
              username of the user which requested the VPN connection.

              Format: string

        vrf setting
          VRF settings.

          Properties:

          table
              Alias: table

              The routing table for this VRF.

              Format: uint32

        vxlan setting
          VXLAN Settings.

          Properties:

          ageing
              Specifies the lifetime in seconds of FDB entries learnt
              by the kernel.

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              Format: uint32

          destination-port
              Alias: destination-port

              Specifies the UDP destination port to communicate to the
              remote VXLAN tunnel endpoint.

              Format: uint32

          id
              Alias: id

              Specifies the VXLAN Network Identifier (or VXLAN Segment
              Identifier) to use.

              Format: uint32

          l2-miss
              Specifies whether netlink LL ADDR miss notifications are
              generated.

              Format: boolean

          l3-miss
              Specifies whether netlink IP ADDR miss notifications are
              generated.

              Format: boolean

          learning
              Specifies whether unknown source link layer addresses
              and IP addresses are entered into the VXLAN device
              forwarding database.

              Format: boolean

          limit
              Specifies the maximum number of FDB entries. A value of
              zero means that the kernel will store unlimited entries.

              Format: uint32

          local
              Alias: local

              If given, specifies the source IP address to use in
              outgoing packets.

              Format: string

          parent

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              Alias: dev

              If given, specifies the parent interface name or parent
              connection UUID.

              Format: string

          proxy
              Specifies whether ARP proxy is turned on.

              Format: boolean

          remote
              Alias: remote

              Specifies the unicast destination IP address to use in
              outgoing packets when the destination link layer address
              is not known in the VXLAN device forwarding database, or
              the multicast IP address to join.

              Format: string

          rsc
              Specifies whether route short circuit is turned on.

              Format: boolean

          source-port-max
              Alias: source-port-max

              Specifies the maximum UDP source port to communicate to
              the remote VXLAN tunnel endpoint.

              Format: uint32

          source-port-min
              Alias: source-port-min

              Specifies the minimum UDP source port to communicate to
              the remote VXLAN tunnel endpoint.

              Format: uint32

          tos
              Specifies the TOS value to use in outgoing packets.

              Format: uint32

          ttl
              Specifies the time-to-live value to use in outgoing
              packets.

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              Format: uint32

        wifi-p2p setting
          Wi-Fi P2P Settings.

          Properties:

          peer
              Alias: peer

              The P2P device that should be connected to. Currently,
              this is the only way to create or join a group.

              Format: string

          wfd-ies
              The Wi-Fi Display (WFD) Information Elements (IEs) to
              set. Wi-Fi Display requires a protocol specific
              information element to be set in certain Wi-Fi frames.
              These can be specified here for the purpose of
              establishing a connection. This setting is only useful
              when implementing a Wi-Fi Display client.

              Format: byte array

          wps-method
              Flags indicating which mode of WPS is to be used.
              There's little point in changing the default setting as
              NetworkManager will automatically determine the best
              method to use.

              Format: uint32

        wimax setting
          WiMax Settings.

          Properties:

          mac-address
              Alias: mac

              If specified, this connection will only apply to the
              WiMAX device whose MAC address matches. This property
              does not change the MAC address of the device (known as
              MAC spoofing). Deprecated: 1

              Format: byte array

          network-name
              Alias: nsp

              Network Service Provider (NSP) name of the WiMAX network

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              this connection should use. Deprecated: 1

              Format: string

        802-3-ethernet setting
          Alias: ethernet

          Wired Ethernet Settings.

          Properties:

          accept-all-mac-addresses
              When TRUE, setup the interface to accept packets for all
              MAC addresses. This is enabling the kernel interface
              flag IFF_PROMISC. When FALSE, the interface will only
              accept the packets with the interface destination mac
              address or broadcast.

              Format: NMTernary (int32)

          auto-negotiate
              When TRUE, enforce auto-negotiation of speed and duplex
              mode. If "speed" and "duplex" properties are both
              specified, only that single mode will be advertised and
              accepted during the link auto-negotiation process: this
              works only for BASE-T 802.3 specifications and is useful
              for enforcing gigabits modes, as in these cases link
              negotiation is mandatory. When FALSE, "speed" and
              "duplex" properties should be both set or link
              configuration will be skipped.

              Format: boolean

          cloned-mac-address
              Alias: cloned-mac

              If specified, request that the device use this MAC
              address instead. This is known as MAC cloning or
              spoofing. Beside explicitly specifying a MAC address,
              the special values "preserve", "permanent", "random" and
              "stable" are supported. "preserve" means not to touch
              the MAC address on activation. "permanent" means to use
              the permanent hardware address if the device has one
              (otherwise this is treated as "preserve"). "random"
              creates a random MAC address on each connect. "stable"
              creates a hashed MAC address based on
              connection.stable-id and a machine dependent key. If
              unspecified, the value can be overwritten via global
              defaults, see manual of NetworkManager.conf. If still
              unspecified, it defaults to "preserve" (older versions
              of NetworkManager may use a different default value). On
              D-Bus, this field is expressed as "assigned-mac-address"

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              or the deprecated "cloned-mac-address".

              Format: byte array

          duplex
              When a value is set, either "half" or "full", configures
              the device to use the specified duplex mode. If
              "auto-negotiate" is "yes" the specified duplex mode will
              be the only one advertised during link negotiation: this
              works only for BASE-T 802.3 specifications and is useful
              for enforcing gigabits modes, as in these cases link
              negotiation is mandatory. If the value is unset (the
              default), the link configuration will be either skipped
              (if "auto-negotiate" is "no", the default) or will be
              auto-negotiated (if "auto-negotiate" is "yes") and the
              local device will advertise all the supported duplex
              modes. Must be set together with the "speed" property if
              specified. Before specifying a duplex mode be sure your
              device supports it.

              Format: string

          generate-mac-address-mask
              With "cloned-mac-address" setting "random" or "stable",
              by default all bits of the MAC address are scrambled and
              a locally-administered, unicast MAC address is created.
              This property allows to specify that certain bits are
              fixed. Note that the least significant bit of the first
              MAC address will always be unset to create a unicast MAC
              address. If the property is NULL, it is eligible to be
              overwritten by a default connection setting. If the
              value is still NULL or an empty string, the default is
              to create a locally-administered, unicast MAC address.
              If the value contains one MAC address, this address is
              used as mask. The set bits of the mask are to be filled
              with the current MAC address of the device, while the
              unset bits are subject to randomization. Setting
              "FE:FF:FF:00:00:00" means to preserve the OUI of the
              current MAC address and only randomize the lower 3 bytes
              using the "random" or "stable" algorithm. If the value
              contains one additional MAC address after the mask, this
              address is used instead of the current MAC address to
              fill the bits that shall not be randomized. For example,
              a value of "FE:FF:FF:00:00:00 68:F7:28:00:00:00" will
              set the OUI of the MAC address to 68:F7:28, while the
              lower bits are randomized. A value of "02:00:00:00:00:00
              00:00:00:00:00:00" will create a fully scrambled
              globally-administered, burned-in MAC address. If the
              value contains more than one additional MAC addresses,
              one of them is chosen randomly. For example,
              "02:00:00:00:00:00 00:00:00:00:00:00 02:00:00:00:00:00"
              will create a fully scrambled MAC address, randomly

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              locally or globally administered.

              Format: string

          mac-address
              Alias: mac

              If specified, this connection will only apply to the
              Ethernet device whose permanent MAC address matches.
              This property does not change the MAC address of the
              device (i.e. MAC spoofing).

              Format: byte array

          mac-address-blacklist
              If specified, this connection will never apply to the
              Ethernet device whose permanent MAC address matches an
              address in the list. Each MAC address is in the standard
              hex-digits-and-colons notation (00:11:22:33:44:55).

              Format: array of string

          mtu
              Alias: mtu

              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple
              Ethernet frames.

              Format: uint32

          port
              Specific port type to use if the device supports
              multiple attachment methods. One of "tp" (Twisted Pair),
              "aui" (Attachment Unit Interface), "bnc" (Thin Ethernet)
              or "mii" (Media Independent Interface). If the device
              supports only one port type, this setting is ignored.

              Format: string

          s390-nettype
              s390 network device type; one of "qeth", "lcs", or
              "ctc", representing the different types of virtual
              network devices available on s390 systems.

              Format: string

          s390-options
              Dictionary of key/value pairs of s390-specific device
              options. Both keys and values must be strings. Allowed
              keys include "portno", "layer2", "portname", "protocol",
              among others. Key names must contain only alphanumeric

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              characters (ie, [a-zA-Z0-9]).

              Format: dict of string to string

          s390-subchannels
              Identifies specific subchannels that this network device
              uses for communication with z/VM or s390 host. Like the
              "mac-address" property for non-z/VM devices, this
              property can be used to ensure this connection only
              applies to the network device that uses these
              subchannels. The list should contain exactly 3 strings,
              and each string may only be composed of hexadecimal
              characters and the period (.) character.

              Format: array of string

          speed
              When a value greater than 0 is set, configures the
              device to use the specified speed. If "auto-negotiate"
              is "yes" the specified speed will be the only one
              advertised during link negotiation: this works only for
              BASE-T 802.3 specifications and is useful for enforcing
              gigabit speeds, as in this case link negotiation is
              mandatory. If the value is unset (0, the default), the
              link configuration will be either skipped (if
              "auto-negotiate" is "no", the default) or will be
              auto-negotiated (if "auto-negotiate" is "yes") and the
              local device will advertise all the supported speeds. In
              Mbit/s, ie 100 == 100Mbit/s. Must be set together with
              the "duplex" property when non-zero. Before specifying a
              speed value be sure your device supports it.

              Format: uint32

          wake-on-lan
              The NMSettingWiredWakeOnLan options to enable. Not all
              devices support all options. May be any combination of
              NM_SETTING_WIRED_WAKE_ON_LAN_PHY (0x2),
              NM_SETTING_WIRED_WAKE_ON_LAN_UNICAST (0x4),
              NM_SETTING_WIRED_WAKE_ON_LAN_MULTICAST (0x8),
              NM_SETTING_WIRED_WAKE_ON_LAN_BROADCAST (0x10),
              NM_SETTING_WIRED_WAKE_ON_LAN_ARP (0x20),
              NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC (0x40) or the special
              values NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT (0x1) (to
              use global settings) and
              NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE (0x8000) (to disable
              management of Wake-on-LAN in NetworkManager).

              Format: uint32

          wake-on-lan-password
              If specified, the password used with magic-packet-based

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              Wake-on-LAN, represented as an Ethernet MAC address. If
              NULL, no password will be required.

              Format: string

        wireguard setting
          WireGuard Settings.

          Properties:

          fwmark
              The use of fwmark is optional and is by default off.
              Setting it to 0 disables it. Otherwise, it is a 32-bit
              fwmark for outgoing packets. Note that
              "ip4-auto-default-route" or "ip6-auto-default-route"
              enabled, implies to automatically choose a fwmark.

              Format: uint32

          ip4-auto-default-route
              Whether to enable special handling of the IPv4 default
              route. If enabled, the IPv4 default route from
              wireguard.peer-routes will be placed to a dedicated
              routing-table and two policy routing rules will be
              added. The fwmark number is also used as routing-table
              for the default-route, and if fwmark is zero, an unused
              fwmark/table is chosen automatically. This corresponds
              to what wg-quick does with Table=auto and what WireGuard
              calls "Improved Rule-based Routing". Note that for this
              automatism to work, you usually don't want to set
              ipv4.gateway, because that will result in a conflicting
              default route. Leaving this at the default will enable
              this option automatically if ipv4.never-default is not
              set and there are any peers that use a default-route as
              allowed-ips.

              Format: NMTernary (int32)

          ip6-auto-default-route
              Like ip4-auto-default-route, but for the IPv6 default
              route.

              Format: NMTernary (int32)

          listen-port
              The listen-port. If listen-port is not specified, the
              port will be chosen randomly when the interface comes
              up.

              Format: uint32

          mtu

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              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple
              fragments. If zero a default MTU is used. Note that
              contrary to wg-quick's MTU setting, this does not take
              into account the current routes at the time of
              activation.

              Format: uint32

          peer-routes
              Whether to automatically add routes for the AllowedIPs
              ranges of the peers. If TRUE (the default),
              NetworkManager will automatically add routes in the
              routing tables according to ipv4.route-table and
              ipv6.route-table. Usually you want this automatism
              enabled. If FALSE, no such routes are added
              automatically. In this case, the user may want to
              configure static routes in ipv4.routes and ipv6.routes,
              respectively. Note that if the peer's AllowedIPs is
              "0.0.0.0/0" or "::/0" and the profile's
              ipv4.never-default or ipv6.never-default setting is
              enabled, the peer route for this peer won't be added
              automatically.

              Format: boolean

          private-key
              The 256 bit private-key in base64 encoding.

              Format: string

          private-key-flags
              Flags indicating how to handle the "private-key"
              property. See the section called lqSecret flag types:rq
              for flag values.

              Format: NMSettingSecretFlags (uint32)

        802-11-wireless setting
          Alias: wifi

          Wi-Fi Settings.

          Properties:

          ap-isolation
              Configures AP isolation, which prevents communication
              between wireless devices connected to this AP. This
              property can be set to a value different from
              NM_TERNARY_DEFAULT (-1) only when the interface is
              configured in AP mode. If set to NM_TERNARY_TRUE (1),
              devices are not able to communicate with each other.

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              This increases security because it protects devices
              against attacks from other clients in the network. At
              the same time, it prevents devices to access resources
              on the same wireless networks as file shares, printers,
              etc. If set to NM_TERNARY_FALSE (0), devices can talk to
              each other. When set to NM_TERNARY_DEFAULT (-1), the
              global default is used; in case the global default is
              unspecified it is assumed to be NM_TERNARY_FALSE (0).

              Format: NMTernary (int32)

          band
              802.11 frequency band of the network. One of "a" for
              5GHz 802.11a or "bg" for 2.4GHz 802.11. This will lock
              associations to the Wi-Fi network to the specific band,
              i.e. if "a" is specified, the device will not associate
              with the same network in the 2.4GHz band even if the
              network's settings are compatible. This setting depends
              on specific driver capability and may not work with all
              drivers.

              Format: string

          bssid
              If specified, directs the device to only associate with
              the given access point. This capability is highly driver
              dependent and not supported by all devices. Note: this
              property does not control the BSSID used when creating
              an Ad-Hoc network and is unlikely to in the future.

              Format: byte array

          channel
              Wireless channel to use for the Wi-Fi connection. The
              device will only join (or create for Ad-Hoc networks) a
              Wi-Fi network on the specified channel. Because channel
              numbers overlap between bands, this property also
              requires the "band" property to be set.

              Format: uint32

          cloned-mac-address
              Alias: cloned-mac

              If specified, request that the device use this MAC
              address instead. This is known as MAC cloning or
              spoofing. Beside explicitly specifying a MAC address,
              the special values "preserve", "permanent", "random" and
              "stable" are supported. "preserve" means not to touch
              the MAC address on activation. "permanent" means to use
              the permanent hardware address of the device. "random"
              creates a random MAC address on each connect. "stable"

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              creates a hashed MAC address based on
              connection.stable-id and a machine dependent key. If
              unspecified, the value can be overwritten via global
              defaults, see manual of NetworkManager.conf. If still
              unspecified, it defaults to "preserve" (older versions
              of NetworkManager may use a different default value). On
              D-Bus, this field is expressed as "assigned-mac-address"
              or the deprecated "cloned-mac-address".

              Format: byte array

          generate-mac-address-mask
              With "cloned-mac-address" setting "random" or "stable",
              by default all bits of the MAC address are scrambled and
              a locally-administered, unicast MAC address is created.
              This property allows to specify that certain bits are
              fixed. Note that the least significant bit of the first
              MAC address will always be unset to create a unicast MAC
              address. If the property is NULL, it is eligible to be
              overwritten by a default connection setting. If the
              value is still NULL or an empty string, the default is
              to create a locally-administered, unicast MAC address.
              If the value contains one MAC address, this address is
              used as mask. The set bits of the mask are to be filled
              with the current MAC address of the device, while the
              unset bits are subject to randomization. Setting
              "FE:FF:FF:00:00:00" means to preserve the OUI of the
              current MAC address and only randomize the lower 3 bytes
              using the "random" or "stable" algorithm. If the value
              contains one additional MAC address after the mask, this
              address is used instead of the current MAC address to
              fill the bits that shall not be randomized. For example,
              a value of "FE:FF:FF:00:00:00 68:F7:28:00:00:00" will
              set the OUI of the MAC address to 68:F7:28, while the
              lower bits are randomized. A value of "02:00:00:00:00:00
              00:00:00:00:00:00" will create a fully scrambled
              globally-administered, burned-in MAC address. If the
              value contains more than one additional MAC addresses,
              one of them is chosen randomly. For example,
              "02:00:00:00:00:00 00:00:00:00:00:00 02:00:00:00:00:00"
              will create a fully scrambled MAC address, randomly
              locally or globally administered.

              Format: string

          hidden
              If TRUE, indicates that the network is a
              non-broadcasting network that hides its SSID. This works
              both in infrastructure and AP mode. In infrastructure
              mode, various workarounds are used for a more reliable
              discovery of hidden networks, such as probe-scanning the
              SSID. However, these workarounds expose inherent

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              insecurities with hidden SSID networks, and thus hidden
              SSID networks should be used with caution. In AP mode,
              the created network does not broadcast its SSID. Note
              that marking the network as hidden may be a privacy
              issue for you (in infrastructure mode) or client
              stations (in AP mode), as the explicit probe-scans are
              distinctly recognizable on the air.

              Format: boolean

          mac-address
              Alias: mac

              If specified, this connection will only apply to the
              Wi-Fi device whose permanent MAC address matches. This
              property does not change the MAC address of the device
              (i.e. MAC spoofing).

              Format: byte array

          mac-address-blacklist
              A list of permanent MAC addresses of Wi-Fi devices to
              which this connection should never apply. Each MAC
              address should be given in the standard
              hex-digits-and-colons notation (eg "00:11:22:33:44:55").

              Format: array of string

          mac-address-randomization
              One of NM_SETTING_MAC_RANDOMIZATION_DEFAULT (0) (never
              randomize unless the user has set a global default to
              randomize and the supplicant supports randomization),
              NM_SETTING_MAC_RANDOMIZATION_NEVER (1) (never randomize
              the MAC address), or NM_SETTING_MAC_RANDOMIZATION_ALWAYS
              (2) (always randomize the MAC address). This property is
              deprecated for 'cloned-mac-address'. Deprecated: 1

              Format: uint32

          mode
              Alias: mode

              Wi-Fi network mode; one of "infrastructure", "mesh",
              "adhoc" or "ap". If blank, infrastructure is assumed.

              Format: string

          mtu
              Alias: mtu

              If non-zero, only transmit packets of the specified size
              or smaller, breaking larger packets up into multiple

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              Ethernet frames.

              Format: uint32

          powersave
              One of NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2)
              (disable Wi-Fi power saving),
              NM_SETTING_WIRELESS_POWERSAVE_ENABLE (3) (enable Wi-Fi
              power saving), NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1)
              (don't touch currently configure setting) or
              NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0) (use the
              globally configured value). All other values are
              reserved.

              Format: uint32

          rate
              If non-zero, directs the device to only use the
              specified bitrate for communication with the access
              point. Units are in Kb/s, ie 5500 = 5.5 Mbit/s. This
              property is highly driver dependent and not all devices
              support setting a static bitrate.

              Format: uint32

          seen-bssids
              A list of BSSIDs (each BSSID formatted as a MAC address
              like "00:11:22:33:44:55") that have been detected as
              part of the Wi-Fi network. NetworkManager internally
              tracks previously seen BSSIDs. The property is only
              meant for reading and reflects the BSSID list of
              NetworkManager. The changes you make to this property
              will not be preserved.

              Format: array of string

          ssid
              Alias: ssid

              SSID of the Wi-Fi network. Must be specified.

              Format: byte array

          tx-power
              If non-zero, directs the device to use the specified
              transmit power. Units are dBm. This property is highly
              driver dependent and not all devices support setting a
              static transmit power.

              Format: uint32

          wake-on-wlan

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              The NMSettingWirelessWakeOnWLan options to enable. Not
              all devices support all options. May be any combination
              of NM_SETTING_WIRELESS_WAKE_ON_WLAN_ANY (0x2),
              NM_SETTING_WIRELESS_WAKE_ON_WLAN_DISCONNECT (0x4),
              NM_SETTING_WIRELESS_WAKE_ON_WLAN_MAGIC (0x8),
              NM_SETTING_WIRELESS_WAKE_ON_WLAN_GTK_REKEY_FAILURE
              (0x10),
              NM_SETTING_WIRELESS_WAKE_ON_WLAN_EAP_IDENTITY_REQUEST
              (0x20), NM_SETTING_WIRELESS_WAKE_ON_WLAN_4WAY_HANDSHAKE
              (0x40), NM_SETTING_WIRELESS_WAKE_ON_WLAN_RFKILL_RELEASE
              (0x80), NM_SETTING_WIRELESS_WAKE_ON_WLAN_TCP (0x100) or
              the special values
              NM_SETTING_WIRELESS_WAKE_ON_WLAN_DEFAULT (0x1) (to use
              global settings) and
              NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE (0x8000) (to
              disable management of Wake-on-LAN in NetworkManager).

              Format: uint32

        802-11-wireless-security setting
          Alias: wifi-sec

          Wi-Fi Security Settings.

          Properties:

          auth-alg
              When WEP is used (ie, key-mgmt = "none" or "ieee8021x")
              indicate the 802.11 authentication algorithm required by
              the AP here. One of "open" for Open System, "shared" for
              Shared Key, or "leap" for Cisco LEAP. When using Cisco
              LEAP (ie, key-mgmt = "ieee8021x" and auth-alg = "leap")
              the "leap-username" and "leap-password" properties must
              be specified.

              Format: string

          fils
              Indicates whether Fast Initial Link Setup (802.11ai)
              must be enabled for the connection. One of
              NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT (0) (use
              global default value),
              NM_SETTING_WIRELESS_SECURITY_FILS_DISABLE (1) (disable
              FILS), NM_SETTING_WIRELESS_SECURITY_FILS_OPTIONAL (2)
              (enable FILS if the supplicant and the access point
              support it) or
              NM_SETTING_WIRELESS_SECURITY_FILS_REQUIRED (3) (enable
              FILS and fail if not supported). When set to
              NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT (0) and no
              global default is set, FILS will be optionally enabled.

              Format: int32

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          group
              A list of group/broadcast encryption algorithms which
              prevents connections to Wi-Fi networks that do not
              utilize one of the algorithms in the list. For maximum
              compatibility leave this property empty. Each list
              element may be one of "wep40", "wep104", "tkip", or
              "ccmp".

              Format: array of string

          key-mgmt
              Key management used for the connection. One of "none"
              (WEP or no password protection), "ieee8021x" (Dynamic
              WEP), "owe" (Opportunistic Wireless Encryption),
              "wpa-psk" (WPA2 + WPA3 personal), "sae" (WPA3 personal
              only), "wpa-eap" (WPA2 + WPA3 enterprise) or
              "wpa-eap-suite-b-192" (WPA3 enterprise only). This
              property must be set for any Wi-Fi connection that uses
              security.

              Format: string

          leap-password
              The login password for legacy LEAP connections (ie,
              key-mgmt = "ieee8021x" and auth-alg = "leap").

              Format: string

          leap-password-flags
              Flags indicating how to handle the "leap-password"
              property. See the section called lqSecret flag types:rq
              for flag values.

              Format: NMSettingSecretFlags (uint32)

          leap-username
              The login username for legacy LEAP connections (ie,
              key-mgmt = "ieee8021x" and auth-alg = "leap").

              Format: string

          pairwise
              A list of pairwise encryption algorithms which prevents
              connections to Wi-Fi networks that do not utilize one of
              the algorithms in the list. For maximum compatibility
              leave this property empty. Each list element may be one
              of "tkip" or "ccmp".

              Format: array of string

          pmf
              Indicates whether Protected Management Frames (802.11w)

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              must be enabled for the connection. One of
              NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT (0) (use global
              default value), NM_SETTING_WIRELESS_SECURITY_PMF_DISABLE
              (1) (disable PMF),
              NM_SETTING_WIRELESS_SECURITY_PMF_OPTIONAL (2) (enable
              PMF if the supplicant and the access point support it)
              or NM_SETTING_WIRELESS_SECURITY_PMF_REQUIRED (3) (enable
              PMF and fail if not supported). When set to
              NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT (0) and no
              global default is set, PMF will be optionally enabled.

              Format: int32

          proto
              List of strings specifying the allowed WPA protocol
              versions to use. Each element may be one "wpa" (allow
              WPA) or "rsn" (allow WPA2/RSN). If not specified, both
              WPA and RSN connections are allowed.

              Format: array of string

          psk
              Pre-Shared-Key for WPA networks. For WPA-PSK, it's
              either an ASCII passphrase of 8 to 63 characters that is
              (as specified in the 802.11i standard) hashed to derive
              the actual key, or the key in form of 64 hexadecimal
              character. The WPA3-Personal networks use a passphrase
              of any length for SAE authentication.

              Format: string

          psk-flags
              Flags indicating how to handle the "psk" property. See
              the section called lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          wep-key-flags
              Flags indicating how to handle the "wep-key0",
              "wep-key1", "wep-key2", and "wep-key3" properties. See
              the section called lqSecret flag types:rq for flag values.

              Format: NMSettingSecretFlags (uint32)

          wep-key-type
              Controls the interpretation of WEP keys. Allowed values
              are NM_WEP_KEY_TYPE_KEY (1), in which case the key is
              either a 10- or 26-character hexadecimal string, or a 5-
              or 13-character ASCII password; or
              NM_WEP_KEY_TYPE_PASSPHRASE (2), in which case the
              passphrase is provided as a string and will be hashed
              using the de-facto MD5 method to derive the actual WEP

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              key.

              Format: NMWepKeyType (uint32)

          wep-key0
              Index 0 WEP key. This is the WEP key used in most
              networks. See the "wep-key-type" property for a
              description of how this key is interpreted.

              Format: string

          wep-key1
              Index 1 WEP key. This WEP index is not used by most
              networks. See the "wep-key-type" property for a
              description of how this key is interpreted.

              Format: string

          wep-key2
              Index 2 WEP key. This WEP index is not used by most
              networks. See the "wep-key-type" property for a
              description of how this key is interpreted.

              Format: string

          wep-key3
              Index 3 WEP key. This WEP index is not used by most
              networks. See the "wep-key-type" property for a
              description of how this key is interpreted.

              Format: string

          wep-tx-keyidx
              When static WEP is used (ie, key-mgmt = "none") and a
              non-default WEP key index is used by the AP, put that
              WEP key index here. Valid values are 0 (default key)
              through 3. Note that some consumer access points (like
              the Linksys WRT54G) number the keys 1 - 4.

              Format: uint32

          wps-method
              Flags indicating which mode of WPS is to be used if any.
              There's little point in changing the default setting as
              NetworkManager will automatically determine whether it's
              feasible to start WPS enrollment from the Access Point
              capabilities. WPS can be disabled by setting this
              property to a value of 1.

              Format: uint32

        wpan setting

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     NM-SETTINGS-NMCLI(5)                         NM-SETTINGS-NMCLI(5)

          IEEE 802.15.4 (WPAN) MAC Settings.

          Properties:

          channel
              Alias: channel

              IEEE 802.15.4 channel. A positive integer or -1, meaning
              "do not set, use whatever the device is already set to".

              Format: int32

          mac-address
              Alias: mac

              If specified, this connection will only apply to the
              IEEE 802.15.4 (WPAN) MAC layer device whose permanent
              MAC address matches.

              Format: string

          page
              Alias: page

              IEEE 802.15.4 channel page. A positive integer or -1,
              meaning "do not set, use whatever the device is already
              set to".

              Format: int32

          pan-id
              Alias: pan-id

              IEEE 802.15.4 Personal Area Network (PAN) identifier.

              Format: uint32

          short-address
              Alias: short-addr

              Short IEEE 802.15.4 address to be used within a
              restricted environment.

              Format: uint32

        hostname setting
          Hostname settings.

          Properties:

          from-dhcp
              Whether the system hostname can be determined from DHCP

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              on this connection. When set to NM_TERNARY_DEFAULT (-1),
              the value from global configuration is used. If the
              property doesn't have a value in the global
              configuration, NetworkManager assumes the value to be
              NM_TERNARY_TRUE (1).

              Format: NMTernary (int32)

          from-dns-lookup
              Whether the system hostname can be determined from
              reverse DNS lookup of addresses on this device. When set
              to NM_TERNARY_DEFAULT (-1), the value from global
              configuration is used. If the property doesn't have a
              value in the global configuration, NetworkManager
              assumes the value to be NM_TERNARY_TRUE (1).

              Format: NMTernary (int32)

          only-from-default
              If set to NM_TERNARY_TRUE (1), NetworkManager attempts
              to get the hostname via DHCPv4/DHCPv6 or reverse DNS
              lookup on this device only when the device has the
              default route for the given address family (IPv4/IPv6).
              If set to NM_TERNARY_FALSE (0), the hostname can be set
              from this device even if it doesn't have the default
              route. When set to NM_TERNARY_DEFAULT (-1), the value
              from global configuration is used. If the property
              doesn't have a value in the global configuration,
              NetworkManager assumes the value to be NM_TERNARY_FALSE
              (0).

              Format: NMTernary (int32)

          priority
              The relative priority of this connection to determine
              the system hostname. A lower numerical value is better
              (higher priority). A connection with higher priority is
              considered before connections with lower priority. If
              the value is zero, it can be overridden by a global
              value from NetworkManager configuration. If the property
              doesn't have a value in the global configuration, the
              value is assumed to be 100. Negative values have the
              special effect of excluding other connections with a
              greater numerical priority value; so in presence of at
              least one negative priority, only connections with the
              lowest priority value will be used to determine the
              hostname.

              Format: int32

        veth setting
          Veth Settings.

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          Properties:

          peer
              Alias: peer

              This property specifies the peer interface name of the
              veth. This property is mandatory.

              Format: string

        Secret flag types:
          Each password or secret property in a setting has an
          associated flags property that describes how to handle that
          secret. The flags property is a bitfield that contains zero
          or more of the following values logically OR-ed together.

          +o   0x0 (none) - the system is responsible for providing and
              storing this secret. This may be required so that
              secrets are already available before the user logs in.
              It also commonly means that the secret will be stored in
              plain text on disk, accessible to root only. For example
              via the keyfile settings plugin as described in the
              "PLUGINS" section in NetworkManager.conf(5).

          +o   0x1 (agent-owned) - a user-session secret agent is
              responsible for providing and storing this secret; when
              it is required, agents will be asked to provide it.

          +o   0x2 (not-saved) - this secret should not be saved but
              should be requested from the user each time it is
              required. This flag should be used for One-Time-Pad
              secrets, PIN codes from hardware tokens, or if the user
              simply does not want to save the secret.

          +o   0x4 (not-required) - in some situations it cannot be
              automatically determined that a secret is required or
              not. This flag hints that the secret is not required and
              should not be requested from the user.

     FILES
          /etc/NetworkManager/system-connections or distro
          plugin-specific location

     SEE ALSO
          nmcli(1), nmcli-examples(7), NetworkManager(8), nm-
          settings-dbus(5), nm-settings-keyfile(5),
          NetworkManager.conf(5)

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