NETWORKCTL
Section: networkctl (1)
Updated:
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NAME
networkctl - Query the status of network links
SYNOPSIS
-
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 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
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 [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
m[blue]RFC 3484m[][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.
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.
-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.
SEE ALSO
systemd-networkd.service(8),
systemd.network(5),
systemd.netdev(5),
ip(8)
NOTES
- 1.
-
RFC 3484
-
https://tools.ietf.org/html/rfc3484