<option>IPv6ProxyNDP</option> has been set to false. Defaults to unset.
</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>IPv6PrefixDelegation=</varname></term>
+ <listitem><para>Whether to enable or disable Router Advertisement sending on a link.
+ Defaults to <literal>false</literal>. See the <literal>[IPv6PrefixDelegation]</literal>
+ and the <literal>[IPv6Prefix]</literal> sections for configuration options.
+ </para></listitem>
+ </varlistentry>
<varlistentry>
<term><varname>Bridge=</varname></term>
<listitem>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>ConfigureWithoutCarrier=</varname></term>
+ <listitem>
+ <para>A boolean. Allows networkd to configure a specific link even if it has no carrier.
+ Defaults to false.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
Defaults to false.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>Anonymize=</varname></term>
+ <listitem>
+ <para>Takes a boolean argument. When true, the options sent to the DHCP server will
+ follow the <ulink url="https://tools.ietf.org/html/rfc7844">RFC 7844</ulink>
+ (Anonymity Profiles for DHCP Clients) to minimize disclosure of identifying information.
+ Defaults to false.</para>
+
+ <para>This option should only be set to true when
+ <varname>MACAddressPolicy=</varname> is set to <literal>random</literal>
+ (see <citerefentry
+ project='man-pages'><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>).</para>
+
+ <para>Note that this configuration will overwrite others.
+ In concrete, the following variables will be ignored:
+ <varname>SendHostname=</varname>, <varname>ClientIdentifier=</varname>,
+ <varname>UseRoutes=</varname>, <varname>SendHostname=</varname>,
+ <varname>UseMTU=</varname>, <varname>VendorClassIdentifier=</varname>,
+ <varname>UseTimezone=</varname>.</para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><varname>SendHostname=</varname></term>
<listitem>
</refsect1>
<refsect1>
+ <title>[IPv6PrefixDelegation] Section Options</title>
+ <para>The <literal>[IPv6PrefixDelegation]</literal> section contains
+ settings for sending IPv6 Router Advertisements and whether to act as
+ a router, if enabled via the <varname>IPv6PrefixDelegation=</varname>
+ option described above. IPv6 network prefixes are defined with one or
+ more <literal>[IPv6Prefix]</literal> sections.</para>
+
+ <variablelist class='network-directives'>
+
+ <varlistentry>
+ <term><varname>Managed=</varname></term>
+ <term><varname>OtherInformation=</varname></term>
+
+ <listitem><para>Controls whether a DHCPv6 server is used to acquire IPv6
+ addresses on the network link when <varname>Managed=</varname> boolean
+ is set to <literal>true</literal> or if only additional network
+ information can be obtained via DHCPv6 for the network link when
+ <varname>OtherInformation=</varname> boolean is set to
+ <literal>true</literal>. Both settings default to
+ <literal>false</literal>, which means that a DHCPv6 server is not being
+ used.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>RouterLifetimeSec=</varname></term>
+
+ <listitem><para>Configures the IPv6 router lifetime in seconds. If set,
+ this host also announces itself in Router Advertisements as an IPv6
+ router for the network link. Defaults to unset, which means the host is
+ not acting as a router.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>RouterPreference=</varname></term>
+
+ <listitem><para>Configures IPv6 router preference if
+ <varname>RouterLifetimeSec=</varname> is non-zero. Valid values are
+ <literal>high</literal>, <literal>medium</literal> and
+ <literal>low</literal>, with <literal>normal</literal> and
+ <literal>default</literal> added as synonyms for
+ <literal>medium</literal> just to make configuration easier. See
+ <ulink url="https://tools.ietf.org/html/rfc4191">RFC 4191</ulink>
+ for details. Defaults to <literal>medium</literal>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>DNS=</varname></term>
+
+ <listitem><para>A list of recursive DNS server IPv6 addresses
+ distributed via Router Advertisement messages.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>DNSLifetimeSec=</varname></term>
+
+ <listitem><para>Lifetime in seconds for the DNS server addresses listed
+ in <varname>DNS=</varname>.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>[IPv6Prefix] Section Options</title>
+ <para>One or more <literal>[IPv6Prefix]</literal> sections contain the IPv6
+ prefixes that are announced via Router Advertisements. See
+ <ulink url="https://tools.ietf.org/html/rfc4861">RFC 4861</ulink>
+ for further details.</para>
+
+ <variablelist class='network-directives'>
+
+ <varlistentry>
+ <term><varname>AddressAutoconfiguration=</varname></term>
+ <term><varname>OnLink=</varname></term>
+
+ <listitem><para>Boolean values to specify whether IPv6 addresses can be
+ autoconfigured with this prefix and whether the prefix can be used for
+ onlink determination. Both settings default to <literal>true</literal>
+ in order to ease configuration.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>Prefix=</varname></term>
+
+ <listitem><para>The IPv6 prefix that is to be distributed to hosts.
+ Similarly to configuring static IPv6 addresses, the setting is
+ configured as an IPv6 prefix and its prefix length, separated by a
+ <literal>/</literal> character. Use multiple
+ <literal>[IPv6Prefix]</literal> sections to configure multiple IPv6
+ prefixes since prefix lifetimes, address autoconfiguration and onlink
+ status may differ from one prefix to another.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>PreferredLifetimeSec=</varname></term>
+ <term><varname>ValidLifetimeSec=</varname></term>
+
+ <listitem><para>Preferred and valid lifetimes for the prefix measured in
+ seconds. <varname>PreferredLifetimeSec=</varname> defaults to 604800
+ seconds (one week) and <varname>ValidLifetimeSec=</varname> defaults
+ to 2592000 seconds (30 days).</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
<title>[Bridge] Section Options</title>
<para>The <literal>[Bridge]</literal> section accepts the
following keys.</para>
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