1SYSTEMD-NETWORKD.SERVICE(8)systemd-networkd.serviceSYSTEMD-NETWORKD.SERVICE(8)
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6 systemd-networkd.service, systemd-networkd - Network manager
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9 systemd-networkd.service
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11 /usr/lib/systemd/systemd-networkd
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14 systemd-networkd is a system service that manages networks. It detects
15 and configures network devices as they appear, as well as creating
16 virtual network devices.
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18 To configure low-level link settings independently of networks, see
19 systemd.link(5).
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21 systemd-networkd will create network devices based on the configuration
22 in systemd.netdev(5) files, respecting the [Match] sections in those
23 files.
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25 systemd-networkd will manage network addresses and routes for any link
26 for which it finds a .network file with an appropriate [Match] section,
27 see systemd.network(5). For those links, it will flush existing network
28 addresses and routes when bringing up the device. Any links not matched
29 by one of the .network files will be ignored. It is also possible to
30 explicitly tell systemd-networkd to ignore a link by using
31 Unmanaged=yes option, see systemd.network(5).
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33 When systemd-networkd exits, it generally leaves existing network
34 devices and configuration intact. This makes it possible to transition
35 from the initrd and to restart the service without breaking
36 connectivity. This also means that when configuration is updated and
37 systemd-networkd is restarted, netdev interfaces for which
38 configuration was removed will not be dropped, and may need to be
39 cleaned up manually.
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41 systemd-networkd may be introspected and controlled at runtime using
42 networkctl(1).
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45 The configuration files are read from the files located in the system
46 network directory /usr/lib/systemd/network, the volatile runtime
47 network directory /run/systemd/network and the local administration
48 network directory /etc/systemd/network.
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50 Networks are configured in .network files, see systemd.network(5), and
51 virtual network devices are configured in .netdev files, see
52 systemd.netdev(5).
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55 networkctl(1), systemd(1), systemd.link(5), systemd.network(5),
56 systemd.netdev(5), systemd-networkd-wait-online.service(8), systemd-
57 network-generator.service(8)
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61systemd 253 SYSTEMD-NETWORKD.SERVICE(8)