networkctl
Query the status of network links.
TLDR
Show a list of existing links and their status
Show an overall network status
Bring network devices up
Bring network devices down
Renew dynamic configurations (e.g. IP addresses received from a DHCP server)
Reload configuration files (.netdev and .network)
Reconfigure network interfaces (if you edited the config, you need to call networkctl reload first)
SYNOPSIS
networkctl [OPTIONS...] COMMAND [LINK...]
DESCRIPTION
networkctl may be used to query or modify 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
one of the bonding or bridge slave network interfaces is in off, no-carrier, or dormant state, and the master interface has no address.
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. For bond or bridge master this means that not all slave network interfaces have carrier but at least one does.
enslaved
the link has carrier and is enslaved to bond or bridge master network interface
routable
the link has carrier and routable address configured. For bond or bridge master it is not necessary for all slave network interfaces to have carrier, but at least one must.
The setup status is one of the following:
pending
udev is still processing the link, we dont yet know if we will manage it
initialized
udev has processed the link, but we dont 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 8.8.4.4In 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[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: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.
edit FILE|@DEVICE...
Edit network configuration files, which include .network, .netdev, and .link files. If no network config file matching the given name is found, a new one will be created under /etc/. Specially, if the name is prefixed by "@", it will be treated as a network interface, and editing will be performed on the network config files associated with it. Additionally, the interface name can be suffixed with ":network" (default) or ":link", in order to choose the type of network config to operate on.
If --drop-in= is specified, edit the drop-in file instead of the main configuration file. Unless --no-reload is specified, systemd-networkd will be reloaded after the edit of the .network or .netdev files finishes. The same applies for .link files and systemd-udevd. Note that the changed link settings are not automatically applied after reloading. To achieve that, trigger uevents for the corresponding interface. Refer to systemd.link(5) for more information.
cat FILE|@DEVICE...
Show network configuration files. This command honors the "@" prefix in the same way as edit.
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.
--drop-in=
NAMEWhen used with edit, edit the drop-in file NAME instead of the main configuration file.
--no-reload
When used with edit, systemd-networkd or systemd-udevd will not be reloaded after the editing finishes.
--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.
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
NOTES
- 1.
-
RFC 3484
https://tools.ietf.org/html/rfc3484
SEE ALSO
systemd-networkd.service(8), systemd.network(5), systemd.netdev(5), ip(8)
