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11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
144 lines
5.8 KiB
XML
144 lines
5.8 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//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+
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This file is part of systemd.
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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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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Vinay</firstname>
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<surname>Kulkarni</surname>
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<email>kulkarniv@vmware.com</email>
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</author>
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</authorgroup>
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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>[DHCP] Section Options</title>
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<para>This section configures the DHCP Unique Identifier (DUID) value used by DHCP
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protocol. DHCPv6 client protocol sends the DHCP Unique Identifier and the interface
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Identity Association Identifier (IAID) to a DHCP server when acquiring a dynamic IPv6
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address. DHCPv4 client protocol sends IAID and DUID to the DHCP server when acquiring
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a dynamic IPv4 address if <option>ClientIdentifier=duid</option>. IAID and DUID allows
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a DHCP server to uniquely identify the machine and the interface requesting a DHCP IP.
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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>The following values are understood:
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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></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>link-layer-time</option> </term>
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<term><option>link-layer</option> </term>
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<term><option>uuid</option> </term>
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<listitem><para>Those values are parsed and can be used to set the DUID type
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field, but DUID contents must be provided using <varname>DUIDRawData=</varname>.
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</para></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></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 systemd-networkd generates using the machine-id
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from the <filename>/etc/machine-id</filename> file. 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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</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>machine-id</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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