X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd-networkd.service.xml;h=05707988785620f47dcfd3fa78b98cd666bb6a09;hp=df5ca36406afd01a48554866f58c4204f161669b;hb=9700d6980f7c212b10a69399e6430b82a6f45587;hpb=c7f3ba1ecd11f126a43fb650937a7dae5d4d0bdd diff --git a/man/systemd-networkd.service.xml b/man/systemd-networkd.service.xml index df5ca3640..057079887 100644 --- a/man/systemd-networkd.service.xml +++ b/man/systemd-networkd.service.xml @@ -63,13 +63,13 @@ To configure low-level link settings independently of networks, see - udev7 - . + systemd.link5. Network configurations applied before networkd is started are not removed, and static configuration applied by networkd - is not removed when networkd exits. This ensures restarting - networkd does not cut the network connection, and, in particular, + is not removed when networkd exits. Dynamic configuration applied by + networkd may also optionally be left in place on shutdown. This ensures + restarting networkd does not cut the network connection, and, in particular, that it is safe to transition between the initrd and the real root, and back. @@ -79,361 +79,23 @@ system network directory /usr/lib/systemd/network, the volatile runtime network directory /run/systemd/network and the local administration - network directory /etc/systemd/network. - All configuration files are collectively sorted and processed in lexical order, - regardless of the directories in which they live. However, files with - identical filenames replace each other. Files in - /etc have the highest priority, files in - /run take precedence over files with the same - name in /usr/lib. This can be used to override a - system-supplied configuration file with a local file if needed; a symlink in - /etc with the same name as a configuration file in - /usr/lib, pointing to /dev/null, - disables the configuration file entirely. + network directory /etc/systemd/network. - Virtual Network Devices - Virtual Network Device files must have the extension - .netdev; other extensions are ignored. Virtual - network devices are created as soon as networkd is started. - - A virtual network device is only created if the - [Match] section matches the current - environment, or if the section is empty. The following keys are accepted: - - - - Host= - - Matches against the hostname or machine ID of the - host. See ConditionHost= in - systemd.unit5 - for details. - - - - - Virtualization= - - Checks whether the system is executed in a virtualized - environment and optionally test whether it is a specific - implementation. See ConditionVirtualization= in - systemd.unit5 - for details. - - - - - KernelCommandLine= - - Checks whether a specific kernel command line option is - set (or if prefixed with the exclamation mark unset). See - ConditionKernelCommandLine= in - systemd.unit5 - for details. - - - - - Architecture= - - Checks whether the system is running on a specific - architecture. See ConditionArchitecture= in - systemd.unit5 - for details. - - - - - - The [NetDev] section accepts the following - keys: - - - - Name= - - The interface name used when creating the - netdev. This option is compulsory. - - - - Kind= - - The netdev kind. Currently, bridge, - bond and vlan - are supported. This option is compulsory. - - - - - The [VLAN] section only applies for netdevs of kind vlan, - and accepts the following key: - - - - Id= - - The VLAN ID to use. An integer in the range 0–4094. - This option is compulsory. - - - - - - - Networks - Network files must have the extension .network; - other extensions are ignored. Networks are applied to links whenever the links - appear. - - The network file contains a [Match] section, - which determines if a given network file may be applied to a given device; - and a [Network] section specifying how the device should - be configured. The first (in lexical order) of the network files that - matches a given device is applied. - - A network file is said to match a device if each of the entries in the - [Match] section matches, or if the section is empty. - The following keys are accepted: - - - - MACAddress= - - The hardware address. - - - - Path= - - The persistent path, as exposed by the udev - property ID_PATH. May contain shell - style globs. - - - - Driver= - - The driver currently bound to the device, as - exposed by the udev property DRIVER - of its parent device, or if that is not set the driver - as exposed by ethtool -i of the - device itself. - - - - Type= - - The device type, as exposed by the udev property - DEVTYPE. - - - - Name= - - The device name, as exposed by the udev property - INTERFACE. May contain shell style - globs. - - - - Host= - - Matches against the hostname or machine ID of the - host. See ConditionHost= in - systemd.unit5 - for details. - - - - - Virtualization= - - Checks whether the system is executed in a virtualized - environment and optionally test whether it is a specific - implementation. See ConditionVirtualization= in - systemd.unit5 - for details. - - - - - KernelCommandLine= - - Checks whether a specific kernel command line option is - set (or if prefixed with the exclamation mark unset). See - ConditionKernelCommandLine= in - systemd.unit5 - for details. - - - - - Architecture= - - Checks whether the system is running on a specific - architecture. See ConditionArchitecture= in - systemd.unit5 - for details. - - - - - - The [Network] section accepts the following keys: - - - - Description= - - A description of the device. This is only used for - presentation purposes. - - - - DHCP= - - A boolean. When true, enables basic DHCPv4 support. - - - - Address= - - A static IPv4 or IPv6 address and its prefix length, - separated by a / character. Specify this - key more than once to configure several addresses. - The format of the address must be as described in - inet_pton3 - . This is a short-hand for an [Address] section only containing an Address key (see below). - - - - - Gateway= - - The gateway address, which must be in the format described in - inet_pton3 - . This is a short-hand for a [Route] section only containing a Gateway key. - - - - DNS= - - A DNS server address, which must be in the format described in - inet_pton3 - . - - - - Bridge= - - The name of the bridge to add the link to. - - - - Bond= - - The name of the bond to add the link to. - - - - VLAN= - - The name of a VLAN to create on the link. This option - may be specified more than once. - - - - - An [Address] section accepts the following keys. - Specify several [Address] sections to configure several - addresses. - - - - Address= - - As in the [Network] section. This key is mandatory. - - - - Broadcast= - - The broadcast address, which must be in the format described in - inet_pton3 - . This key only applies to IPv4 addresses. If it is not given, it is - derived from the Address key. - - - - Label= - - An address label. - - - - - The [Route] section accepts the following keys. Specify - several [Route] sections to configure several routes. - - - - Gateway= - - As in the [Network] section. This key is mandatory. - - - - Destination= - - The destination prefix of the route. Possibly followed by a slash and the - prefixlength, if ommitted a full-length host route is assumed. - - - - - The [DHCPv4] section accepts the following keys: - - - - UseDNS= - - When true (the default), the DNS servers received from the DHCP server will - be used and take precedence over any statically configured ones. - - - - UseMTU= - - When true, the interface maximum transmission unit from the DHCP server will - be used on the current link. Defaults to false. - - - - UseHostname= - - When true (the default), the hostname received from the DHCP server - will be used as the transient hostname. - - - - CriticalConnection= - - When true, the connection will never be torn down even if the DHCP lease - expires. This is contrary to the DHCP specification, but may be the best choice - if, say, the root filesystem relies on this connection. Defaults to false. - - - - - + Networks are configured in .network files, see + systemd.network5, + and virtual network devices are configured in .netdev files, see + systemd.netdev5. + See Also systemd1, - udev7 + systemd.link5, + systemd.network5, + systemd.netdev5, + systemd-network-wait-online.service8