mirror of
https://github.com/systemd/systemd
synced 2024-11-02 19:41:12 +00:00
aefdc1124f
As I noticed a lot of missing information when trying to implement checking
for missing info. I reimplemented the version information script to be more
robust, and here is the result.
Follow up to ec07c3c80b
256 lines
12 KiB
XML
256 lines
12 KiB
XML
<?xml version='1.0'?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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SPDX-License-Identifier: LGPL-2.1-or-later
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Copyright © 2014 Vinay Kulkarni
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-->
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<refentry id="networkd.conf" conditional='ENABLE_NETWORKD'
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>networkd.conf</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>networkd.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>networkd.conf</refname>
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<refname>networkd.conf.d</refname>
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<refpurpose>Global Network configuration files</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/systemd/networkd.conf</filename></para>
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<para><filename>/etc/systemd/networkd.conf.d/*.conf</filename></para>
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<para><filename>/usr/lib/systemd/networkd.conf.d/*.conf</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>These configuration files control global network parameters.
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Currently the DHCP Unique Identifier (DUID).</para>
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</refsect1>
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<xi:include href="standard-conf.xml" xpointer="main-conf" />
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<refsect1>
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<title>[Network] Section Options</title>
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<para>The following options are available in the [Network] section:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>SpeedMeter=</varname></term>
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<listitem><para>Takes a boolean. If set to yes, then <command>systemd-networkd</command>
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measures the traffic of each interface, and
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<command>networkctl status <replaceable>INTERFACE</replaceable></command> shows the measured speed.
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Defaults to no.</para>
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<xi:include href="version-info.xml" xpointer="v244"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>SpeedMeterIntervalSec=</varname></term>
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<listitem><para>Specifies the time interval to calculate the traffic speed of each interface.
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If <varname>SpeedMeter=no</varname>, the value is ignored. Defaults to 10sec.</para>
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<xi:include href="version-info.xml" xpointer="v244"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ManageForeignRoutingPolicyRules=</varname></term>
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<listitem><para>A boolean. When true, <command>systemd-networkd</command> will remove rules
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that are not configured in .network files (except for rules with protocol
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<literal>kernel</literal>). When false, it will not remove any foreign rules, keeping them even
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if they are not configured in a .network file. Defaults to yes.
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</para>
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<xi:include href="version-info.xml" xpointer="v249"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ManageForeignRoutes=</varname></term>
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<listitem><para>A boolean. When true, <command>systemd-networkd</command> will remove routes
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that are not configured in .network files (except for routes with protocol
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<literal>kernel</literal>, <literal>dhcp</literal> when <varname>KeepConfiguration=</varname>
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is true or <literal>dhcp</literal>, and <literal>static</literal> when
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<varname>KeepConfiguration=</varname> is true or <literal>static</literal>). When false, it will
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not remove any foreign routes, keeping them even if they are not configured in a .network file.
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Defaults to yes.</para>
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<xi:include href="version-info.xml" xpointer="v246"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>RouteTable=</varname></term>
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<listitem><para>Defines the route table name. Takes a whitespace-separated list of the pairs of
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route table name and number. The route table name and number in each pair are separated with a
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colon, i.e., <literal><replaceable>name</replaceable>:<replaceable>number</replaceable></literal>.
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The route table name must not be <literal>default</literal>, <literal>main</literal>, or
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<literal>local</literal>, as these route table names are predefined with route table number 253,
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254, and 255, respectively. The route table number must be an integer in the range 1…4294967295,
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except for predefined numbers 253, 254, and 255. This setting can be specified multiple times.
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If an empty string is specified, then the list specified earlier are cleared. Defaults to unset.
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</para>
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<xi:include href="version-info.xml" xpointer="v248"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>IPv6PrivacyExtensions=</varname></term>
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<listitem>
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<para>Specifies the default value for per-network <varname>IPv6PrivacyExtensions=</varname>.
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Takes a boolean or the special values <literal>prefer-public</literal> and
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<literal>kernel</literal>. See for details in
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<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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Defaults to <literal>no</literal>.</para>
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<xi:include href="version-info.xml" xpointer="v254"/>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[DHCPv4] Section Options</title>
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<para>This section configures the DHCP Unique Identifier (DUID) value used by DHCP protocol. DHCPv4
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client protocol sends IAID and DUID to the DHCP server when acquiring a dynamic IPv4 address if
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<option>ClientIdentifier=duid</option>. IAID and DUID allows a DHCP server to uniquely identify the
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machine and the interface requesting a DHCP IP address. To configure IAID and ClientIdentifier, see
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<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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</para>
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<para>The following options are understood:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>DUIDType=</varname></term>
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<listitem><para>Specifies how the DUID should be generated. See
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<ulink url="https://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>
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for a description of all the options.</para>
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<para>This takes an integer in the range 0…65535, or one of the following string values:
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<variablelist>
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<varlistentry>
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<term><option>vendor</option></term>
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<listitem><para>If <literal>DUIDType=vendor</literal>, then the DUID value will be generated using
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<literal>43793</literal> as the vendor identifier (systemd) and hashed contents of
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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This is the default if <varname>DUIDType=</varname> is not specified.
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</para>
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<xi:include href="version-info.xml" xpointer="v230"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>uuid</option></term>
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<listitem><para>If <literal>DUIDType=uuid</literal>, and <varname>DUIDRawData=</varname> is not set,
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then the product UUID is used as a DUID value. If a system does not have valid product UUID, then
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an application-specific
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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is used as a DUID value. About the application-specific machine ID, see
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<citerefentry><refentrytitle>sd_id128_get_machine_app_specific</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
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</para>
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<xi:include href="version-info.xml" xpointer="v230"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>link-layer-time[:<replaceable>TIME</replaceable>]</option></term>
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<term><option>link-layer</option></term>
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<listitem><para>If <literal>link-layer-time</literal> or <literal>link-layer</literal> is specified,
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then the MAC address of the interface is used as a DUID value. The value <literal>link-layer-time</literal>
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can take additional time value after a colon, e.g. <literal>link-layer-time:2018-01-23 12:34:56 UTC</literal>.
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The default time value is <literal>2000-01-01 00:00:00 UTC</literal>.
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</para>
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<xi:include href="version-info.xml" xpointer="v240"/></listitem>
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</varlistentry>
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</variablelist>
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</para>
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<para>In all cases, <varname>DUIDRawData=</varname> can be used to override the
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actual DUID value that is used.</para>
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<xi:include href="version-info.xml" xpointer="v230"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>DUIDRawData=</varname></term>
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<listitem><para>Specifies the DHCP DUID value as a single newline-terminated, hexadecimal string, with each
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byte separated by <literal>:</literal>. The DUID that is sent is composed of the DUID type specified by
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<varname>DUIDType=</varname> and the value configured here.</para>
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<para>The DUID value specified here overrides the DUID that
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<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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generates from the machine ID. To configure DUID per-network, see
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<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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The configured DHCP DUID should conform to the specification in
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<ulink url="http://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>,
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<ulink url="http://tools.ietf.org/html/rfc6355">RFC 6355</ulink>. To configure IAID, see
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<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>.</para>
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<example>
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<title>A <option>DUIDType=vendor</option> with a custom value</title>
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<programlisting>DUIDType=vendor
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DUIDRawData=00:00:ab:11:f9:2a:c2:77:29:f9:5c:00</programlisting>
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<para>This specifies a 14 byte DUID, with the type DUID-EN (<literal>00:02</literal>), enterprise number
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43793 (<literal>00:00:ab:11</literal>), and identifier value <literal>f9:2a:c2:77:29:f9:5c:00</literal>.
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</para>
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</example>
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<xi:include href="version-info.xml" xpointer="v230"/>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[DHCPv6] Section Options</title>
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<para>This section configures the DHCP Unique Identifier (DUID) value used by DHCPv6 protocol.
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DHCPv6 client protocol sends the DHCP Unique Identifier and the interface Identity Association
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Identifier (IAID) to a DHCPv6 server when acquiring a dynamic IPv6 address. IAID and DUID allows a
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DHCPv6 server to uniquely identify the machine and the interface requesting a DHCP IP address. To
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configure IAID, see
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<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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</para>
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<para>The following options are understood:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>DUIDType=</varname></term>
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<term><varname>DUIDRawData=</varname></term>
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<listitem><para>As in the [DHCPv4] section.</para>
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<xi:include href="version-info.xml" xpointer="v249"/></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd_id128_get_machine_app_specific</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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