networkctl(1) — Linux manual page


NETWORKCTL(1)                  networkctl                  NETWORKCTL(1)

NAME         top

       networkctl - Query the status of network links

SYNOPSIS         top

       networkctl [OPTIONS...] COMMAND [LINK...]

DESCRIPTION         top

       networkctl may be used to introspect the state of the network
       links as seen by systemd-networkd. Please refer to
       systemd-networkd.service(8) for an introduction to the basic
       concepts, functionality, and configuration syntax.

COMMANDS         top

       The following commands are understood:

       list [PATTERN...]
           Show a list of existing links and their status. If one or
           more PATTERNs are specified, only links matching one of them
           are shown. If no further arguments are specified shows all
           links, otherwise just the specified links. Produces output
           similar to:

               IDX LINK         TYPE     OPERATIONAL SETUP
                 1 lo           loopback carrier     unmanaged
                 2 eth0         ether    routable    configured
                 3 virbr0       ether    no-carrier  unmanaged
                 4 virbr0-nic   ether    off         unmanaged

               4 links listed.

           The operational status is one of the following:

               the device is missing

               the device is powered down

               the device is powered up, but it does not yet have a

               the device has a carrier, but is not yet ready for normal

               for bond or bridge master, one of the bonding or bridge
               slave network interfaces is in off, no-carrier, or
               dormant state

               the link has a carrier, or for bond or bridge master, all
               bonding or bridge slave network interfaces are enslaved
               to the master

               the link has carrier and addresses valid on the local
               link configured

               the link has carrier and is enslaved to bond or bridge
               master network interface

               the link has carrier and routable address configured

           The setup status is one of the following:

               udev is still processing the link, we don't yet know if
               we will manage it

               udev has processed the link, but we don't yet know if we
               will manage it

               in the process of retrieving configuration or configuring
               the link

               link configured successfully

               networkd is not handling the link

               networkd failed to manage the link

               the link is gone, but has not yet been dropped by

       status [PATTERN...]
           Show information about the specified links: type, state,
           kernel module driver, hardware and IP address, configured DNS
           servers, etc. If one or more PATTERNs are specified, only
           links matching one of them are shown.

           When no links are specified, an overall network status is
           shown. Also see the option --all.

           Produces output similar to:

               ●        State: routable
                 Online state: online
                      Address: on eth0
                      on virbr0
                      on eth0
                               fe80::5054:aa:bbbb:cccc on eth0
                      Gateway: (CISCO SYSTEMS, INC.) on eth0

           In the overall network status, the online state depends on
           the individual online state of all required links. Managed
           links are required for online by default. In this case, the
           online state is one of the following:

               all links have unknown online status (i.e. there are no
               required links)

               all required links are offline

               some, but not all, required links are online

               all required links are online

       lldp [PATTERN...]
           Show discovered LLDP (Link Layer Discovery Protocol)
           neighbors. If one or more PATTERNs are specified only
           neighbors on those interfaces are shown. Otherwise shows
           discovered neighbors on all interfaces. Note that for this
           feature to work, LLDP= must be turned on for the specific
           interface, see for details.

           Produces output similar to:

               LINK             CHASSIS ID        SYSTEM NAME      CAPS        PORT ID           PORT DESCRIPTION
               enp0s25          00:e0:4c:00:00:00 GS1900           ..b........ 2                 Port #2

               Capability Flags:
               o - Other; p - Repeater;  b - Bridge; w - WLAN Access Point; r - Router;
               t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;
               s - Service VLAN, m - Two-port MAC Relay (TPMR)

               1 neighbors listed.

           Show numerical address labels that can be used for address
           selection. This is the same information that ip-addrlabel(8)
           shows. See RFC 3484[1] for a discussion of address labels.

           Produces output similar to:

               Prefix/Prefixlen                          Label
                       ::/0                                  1
                   fc00::/7                                  5
                   fec0::/10                                11
                   2002::/16                                 2
                   3ffe::/16                                12
                2001:10::/28                                 7
                   2001::/32                                 6
               ::ffff:                             4
                       ::/96                                 3
                      ::1/128                                0

       delete DEVICE...
           Deletes virtual netdevs. Takes interface name or index

       up DEVICE...
           Bring devices up. Takes interface name or index number.

       down DEVICE...
           Bring devices down. Takes interface name or index number.

       renew DEVICE...
           Renew dynamic configurations e.g. addresses received from
           DHCP server. Takes interface name or index number.

       forcerenew DEVICE...
           Send a FORCERENEW message to all connected clients,
           triggering DHCP reconfiguration. Takes interface name or
           index number.

       reconfigure DEVICE...
           Reconfigure network interfaces. Takes interface name or index
           number. Note that this does not reload .netdev or .network
           corresponding to the specified interface. So, if you edit
           config files, it is necessary to call networkctl reload first
           to apply new settings.

           Reload .netdev and .network files. If a new .netdev file is
           found, then the corresponding netdev is created. Note that
           even if an existing .netdev is modified or removed,
           systemd-networkd does not update or remove the netdev. If a
           new, modified or removed .network file is found, then all
           interfaces which match the file are reconfigured.

OPTIONS         top

       The following options are understood:

       -a --all
           Show all links with status.

       -s --stats
           Show link statistics with status.

       -l, --full
           Do not ellipsize the output.

       -n, --lines=
           When used with status, controls the number of journal lines
           to show, counting from the most recent ones. Takes a positive
           integer argument. Defaults to 10.

           Shows output formatted as JSON. Expects one of "short" (for
           the shortest possible output without any redundant whitespace
           or line breaks), "pretty" (for a pretty version of the same,
           with indentation and line breaks) or "off" (to turn off JSON
           output, the default).

       -h, --help
           Print a short help text and exit.

           Print a short version string and exit.

           Do not print the legend, i.e. column headers and the footer
           with hints.

           Do not pipe output into a pager.

EXIT STATUS         top

       On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO         top

       systemd.netdev(5), ip(8)

NOTES         top

        1. RFC 3484

COLOPHON         top

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       This page was obtained from the project's upstream Git repository
       ⟨⟩ on 2022-12-17.  (At that
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systemd 252                                                NETWORKCTL(1)

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