systemd Documentation Zbigniew Jędrzejewski-Szmek zbyszek@in.waw.pl networkctl 1 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.service8 for an introduction to the basic concepts, functionality, and configuration syntax. The following options are understood: -a --all Show all links with status. 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. 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: 8.8.8.8 8.8.4.4 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 on the specific interface, see systemd.network5 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. On success, 0 is returned, a non-zero failure code otherwise. systemd-networkd.service8, systemd.network5, systemd.netdev5