Provided by: systemd_249.11-0ubuntu3_amd64
networkctl - Query the status of network links
networkctl [OPTIONS...] COMMAND [LINK...]
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.
The following commands are understood: list [PATTERN...] Show a list of existing links and their status. If one ore 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 failed networkd failed to manage the link configuring in the process of retrieving configuration or configuring the link configured link configured successfully unmanaged networkd is not handling 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 ore 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: 18.104.22.168 22.214.171.124 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.
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. --json=MODE 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. --version Print a short version string and exit. --no-legend Do not print the legend, i.e. column headers and the footer with hints. --no-pager Do not pipe output into a pager.
On success, 0 is returned, a non-zero failure code otherwise.
systemd-networkd.service(8), systemd.network(5), systemd.netdev(5), ip(8)
1. RFC 3484 https://tools.ietf.org/html/rfc3484