networkctl

systemd
networkctl 1
networkctl Query the status of network links
`networkctl` OPTIONS COMMAND LINK

## Description

`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

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:

  missing

    the device is missing

  off

    the device is powered down

  no-carrier

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

  dormant

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

  degraded-carrier

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

  carrier

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

  degraded

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

  enslaved

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

  routable

    the link has carrier and routable address configured

  The setup status is one of the following:

  pending

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

  initialized

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

  configuring

    in the process of retrieving configuration or configuring the link

  configured

    link configured successfully

  unmanaged

    networkd is not handling the link

  failed

    networkd failed to manage the link

  linger

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

`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: 10.193.76.5 on eth0
                      192.168.122.1 on virbr0
                      169.254.190.105 on eth0
                      fe80::5054:aa:bbbb:cccc on eth0
             Gateway: 10.193.11.1 (CISCO SYSTEMS, INC.) on eth0
                 DNS: 8.8.8.8
                      8.8.4.4

  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:

  unknown

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

  offline

    all required links are offline

  partial

    some, but not all, required links are online

  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 systemd.network 5 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.

`label`

  Show numerical address labels that can be used for address selection. This is the same information that ip-addrlabel 8 shows. See RFC 3484 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:0.0.0.0/96                             4
              ::/96                                 3
             ::1/128                                0

`delete` DEVICE…

  Deletes virtual netdevs. Takes interface name or index number.

`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`

  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

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.

## Exit status

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

## See Also

systemd-networkd.service 8, systemd.network 5, systemd.netdev 5, ip 8