systemd-networkd(8) - man - phpman

SYSTEMD-NETWORKD.SERVICE(8)           systemd-networkd.service           SYSTEMD-NETWORKD.SERVICE(8)



NAME
       systemd-networkd.service, systemd-networkd - Network manager

SYNOPSIS
       systemd-networkd.service

       /lib/systemd/systemd-networkd

DESCRIPTION
       systemd-networkd is a system service that manages networks. It detects and configures network
       devices as they appear, as well as creating virtual network devices.

       To configure low-level link settings independently of networks, see systemd.link(5).

       systemd-networkd will create network devices based on the configuration in systemd.netdev(5)
       files, respecting the [Match] sections in those files.

       systemd-networkd will manage network addresses and routes for any link for which it finds a
       .network file with an appropriate [Match] section, see systemd.network(5). For those links,
       it will flush existing network addresses and routes when bringing up the device. Any links
       not matched by one of the .network files will be ignored. It is also possible to explicitly
       tell systemd-networkd to ignore a link by using Unmanaged=yes option, see systemd.network(5).

       When systemd-networkd exits, it generally leaves existing network devices and configuration
       intact. This makes it possible to transition from the initramfs and to restart the service
       without breaking connectivity. This also means that when configuration is updated and
       systemd-networkd is restarted, netdev interfaces for which configuration was removed will not
       be dropped, and may need to be cleaned up manually.

       systemd-networkd may be introspected and controlled at runtime using networkctl(1).

CONFIGURATION FILES
       The configuration files are read from the files located in the system network directory
       /lib/systemd/network, the volatile runtime network directory /run/systemd/network and the
       local administration network directory /etc/systemd/network.

       Networks are configured in .network files, see systemd.network(5), and virtual network
       devices are configured in .netdev files, see systemd.netdev(5).

SEE ALSO
       networkctl(1), systemd(1), systemd.link(5), systemd.network(5), systemd.netdev(5), systemd-
       networkd-wait-online.service(8), systemd-network-generator.service(8)



systemd 249                                                              SYSTEMD-NETWORKD.SERVICE(8)