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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+ "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd.network" conditional='ENABLE_NETWORKD'
<varlistentry>
<term><varname>RequiredForOnline=</varname></term>
<listitem>
- <para>Takes a boolean or a minimum operational state and an optional maximum operational
- state. Please see
+ <para>Takes a boolean, a minimum operational state (e.g., <literal>carrier</literal>), or a range
+ of operational state separated with a colon (e.g., <literal>degraded:routable</literal>).
+ Please see
<citerefentry><refentrytitle>networkctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
for possible operational states. When <literal>yes</literal>, the network is deemed required
when determining whether the system is online (including when running
minimum and maximum operational state required for the network interface to be considered
online.</para>
+ <para>When <literal>yes</literal> is specified for a CAN device,
+ <command>systemd-networkd-wait-online</command> deems that the interface is online when its
+ operational state becomes <literal>carrier</literal>. For an interface with other type, e.g.
+ <literal>ether</literal>, the interface is deened online when its online state is
+ <literal>degraded</literal> or <literal>routable</literal>.</para>
+
<para>Defaults to <literal>yes</literal> when <varname>ActivationPolicy=</varname> is not
set, or set to <literal>up</literal>, <literal>always-up</literal>, or
<literal>bound</literal>. Defaults to <literal>no</literal> when
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>IPv6RetransmissionTimeSec=</varname></term>
+ <listitem>
+ <para>Configures IPv6 Retransmission Time. The time between retransmitted Neighbor
+ Solicitation messages. Used by address resolution and the Neighbor Unreachability
+ Detection algorithm. A value of zero is ignored and the kernel's current value
+ will be used. Defaults to unset, and the kernel's current value will be used.</para>
+
+ <xi:include href="version-info.xml" xpointer="v256"/>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><varname>IPv4ReversePathFilter=</varname></term>
<listitem>
Fallback Peer Labeling</ulink> rules. They will be removed when the interface is
deconfigured. Failures to manage the labels will be ignored.</para>
- <para>Warning: Once labeling is enabled for network traffic, a lot of LSM access control points in
- Linux networking stack go from dormant to active. Care should be taken to avoid getting into a
- situation where for example remote connectivity is broken, when the security policy hasn't been
- updated to consider LSM per-packet access controls and no rules would allow any network
- traffic. Also note that additional configuration with <citerefentry
- project='man-pages'><refentrytitle>netlabelctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>
- is needed.</para>
+ <warning>
+ <para>Once labeling is enabled for network traffic, a lot of LSM access control points in
+ Linux networking stack go from dormant to active. Care should be taken to avoid getting into a
+ situation where for example remote connectivity is broken, when the security policy hasn't been
+ updated to consider LSM per-packet access controls and no rules would allow any network
+ traffic. Also note that additional configuration with <citerefentry
+ project='man-pages'><refentrytitle>netlabelctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ is needed.</para>
+ </warning>
<para>Example:
<programlisting>[Address]
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>L3MasterDevice=</varname></term>
+ <listitem>
+ <para>A boolean. Specifies whether the rule is to direct lookups to the tables associated with
+ level 3 master devices (also known as Virtual Routing and Forwarding or VRF devices).
+ For further details see <ulink url="https://docs.kernel.org/networking/vrf.html">
+ Virtual Routing and Forwarding (VRF)</ulink>. Defaults to false.</para>
+
+ <xi:include href="version-info.xml" xpointer="v256"/>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><varname>SourcePort=</varname></term>
<listitem>
<command>ip route show table <replaceable>num</replaceable></command>. If unset and
<varname>Type=</varname> is <literal>local</literal>, <literal>broadcast</literal>,
<literal>anycast</literal>, or <literal>nat</literal>, then <literal>local</literal> is used.
- In other cases, defaults to <literal>main</literal>.</para>
+ In other cases, defaults to <literal>main</literal>. Ignored if <varname>L3MasterDevice=</varname> is true.</para>
<xi:include href="version-info.xml" xpointer="v230"/>
</listitem>
</listitem>
</varlistentry>
- <varlistentry>
- <term><varname>TTLPropagate=</varname></term>
- <listitem>
- <para>Takes a boolean. When true enables TTL propagation at Label Switched Path (LSP) egress.
- When unset, the kernel's default will be used.</para>
-
- <xi:include href="version-info.xml" xpointer="v243"/>
- </listitem>
- </varlistentry>
-
<varlistentry>
<term><varname>MTUBytes=</varname></term>
<listitem>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>UseRetransmissionTime=</varname></term>
+ <listitem>
+ <para>Takes a boolean. When true, the retransmission time received in the Router Advertisement will be set
+ on the interface receiving the advertisement. It is used as the time between retransmissions of Neighbor
+ Solicitation messages to a neighbor when resolving the address or when probing the reachability of a neighbor.
+ Defaults to true.</para>
+
+ <xi:include href="version-info.xml" xpointer="v256"/>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><varname>UseICMP6RateLimit=</varname></term>
<listitem>
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