systemd-network-generator.service(8) — Linux manual page

SYSTEM...ERVICE(8)  systemd-network-generator.service SYSTEM...ERVICE(8)

NAME

       systemd-network-generator.service, systemd-network-generator -
       Generate network configuration from the kernel command line

SYNOPSIS

       systemd-network-generator.service

       /usr/lib/systemd/systemd-network-generator

DESCRIPTION

       systemd-network-generator.service is a system service that
       translates ip= and related settings on the kernel command line
       (see below) into systemd.network(5), systemd.netdev(5), and
       systemd.link(5) configuration files understood by
       systemd-networkd.service(8) and systemd-udevd.service(8).

       Files are generated in /run/systemd/network/.

       Note: despite the name, this generator executes as a normal
       systemd service and is not an implementation of the
       systemd.generator(7) concept.

KERNEL COMMAND LINE OPTIONS

       This tool understands the following options:

       ip=, nameserver=, rd.route=, rd.peerdns=
           Translated into systemd.network(5) files.

           In addition to the parameters dracut.cmdline(7) defines the
           ip= option accepts the special value "link-local". If
           selected, the network interfaces will be configured for
           link-local addressing (IPv4LL, IPv6LL) only, DHCP or IPv6RA
           will not be enabled.

           Added in version 245.

       ifname=, net.ifname_policy=
           Translated into systemd.link(5) files.

           Added in version 245.

       vlan=, bond=, bridge=, bootdev=
           Translated into systemd.netdev(5) files.

           Added in version 245.

       See dracut.cmdline(7) and systemd-udevd.service(8) for option
       syntax and details.

CREDENTIALS

       systemd-network-generator supports the service credentials logic
       as implemented by
       ImportCredential=/LoadCredential=/SetCredential= (see
       systemd.exec(5) for details). The following credentials are used
       when passed in:

       network.conf.*, network.link.*, network.netdev.*,
       network.network.*
           These credentials should contain valid networkd.conf(5),
           systemd.link(5), systemd.netdev(5), systemd.network(5)
           configuration data. From each matching credential a separate
           file is created. Example: a passed credential
           network.link.50-foobar will be copied into a configuration
           file 50-foobar.link.

           Note that the resulting files are created world-readable,
           it's hence recommended to not include secrets in these
           credentials, but supply them via separate credentials
           directly to systemd-networkd.service.

           Added in version 256.

       Note that by default the systemd-network-generator.service unit
       file is set up to inherit the these credentials from the service
       manager.

SEE ALSO

       systemd(1), systemd-networkd.service(8), dracut(8)

COLOPHON

       This page is part of the systemd (systemd system and service
       manager) project.  Information about the project can be found at
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have
       a bug report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-06-13.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

systemd 257~devel                                     SYSTEM...ERVICE(8)

Pages that refer to this page: systemd.link(5), systemd.netdev(5), systemd.network(5), kernel-command-line(7), systemd.directives(7), systemd.index(7), systemd.system-credentials(7), systemd-networkd.service(8), systemd-storagetm.service(8), systemd-udevd.service(8)

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