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man: mention DHCPv4 Router option is ignored when Classless Static Routes option is received

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For #29564.
This commit is contained in:
Yu Watanabe 2023-11-03 15:45:52 +09:00 committed by Luca Boccassi
parent 69d17e23db
commit 45a7ef454e
1 changed files with 7 additions and 3 deletions
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10
man/systemd.network.xml
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@ -2567,9 +2567,13 @@ NFTSet=prefix:netdev:filter:eth_ipv4_prefix</programlisting>
<varlistentry>
<term><varname>UseGateway=</varname></term>
<listitem>
<para>When true, the gateway will be requested from the DHCP server and added to the routing
table with a metric of 1024, and a scope of <option>link</option>. When unset, the value
specified with <varname>UseRoutes=</varname> is used.</para>
<para>When true, and the DHCP server provides a Router option, the default gateway based on the
router address will be configured. Defaults to unset, and the value specified with
<varname>UseRoutes=</varname> will be used.</para>
<para>Note, when the server provides both the Router and Classless Static Routes option, and
<varname>UseRoutes=</varname> is enabled, the Router option is always ignored regardless of this
setting. See <ulink url="https://datatracker.ietf.org/doc/html/rfc3442">RFC 3442</ulink>.</para>
<xi:include href="version-info.xml" xpointer="v246"/>
</listitem>