Provided by: systemd_240-6ubuntu5_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 options are understood: -a --all Show all links with status. -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.
The following commands are understood: list [LINK...] Show a list of existing links and their status. 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: 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 carrier the link has a carrier degraded the link has carrier and addresses valid on the local link configured 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 [LINK...] Show information about the specified links: type, state, kernel module driver, hardware and IP address, configured DNS servers, etc. When no links are specified, an overall network status is shown. Also see the option --all. Produces output similar to: ● State: routable 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: 188.8.131.52 184.108.40.206 lldp [LINK...] Show discovered LLDP (Link Layer Discovery Protocol) neighbors. If one or more link names 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
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