]>
Commit | Line | Data |
---|---|---|
514094f9 | 1 | <?xml version='1.0'?> |
413708d1 VK |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" |
3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
4 | ||
5 | <!-- | |
572eb058 ZJS |
6 | SPDX-License-Identifier: LGPL-2.1+ |
7 | ||
96b2fb93 | 8 | Copyright © 2014 Vinay Kulkarni |
413708d1 VK |
9 | --> |
10 | ||
11 | <refentry id="networkd.conf" conditional='ENABLE_NETWORKD' | |
12 | xmlns:xi="http://www.w3.org/2001/XInclude"> | |
13 | <refentryinfo> | |
14 | <title>networkd.conf</title> | |
15 | <productname>systemd</productname> | |
413708d1 VK |
16 | </refentryinfo> |
17 | ||
18 | <refmeta> | |
19 | <refentrytitle>networkd.conf</refentrytitle> | |
20 | <manvolnum>5</manvolnum> | |
21 | </refmeta> | |
22 | ||
23 | <refnamediv> | |
24 | <refname>networkd.conf</refname> | |
25 | <refname>networkd.conf.d</refname> | |
26 | <refpurpose>Global Network configuration files</refpurpose> | |
27 | </refnamediv> | |
28 | ||
29 | <refsynopsisdiv> | |
30 | <para><filename>/etc/systemd/networkd.conf</filename></para> | |
31 | <para><filename>/etc/systemd/networkd.conf.d/*.conf</filename></para> | |
32 | <para><filename>/usr/lib/systemd/networkd.conf.d/*.conf</filename></para> | |
33 | </refsynopsisdiv> | |
34 | ||
35 | <refsect1> | |
36 | <title>Description</title> | |
37 | ||
38 | <para>These configuration files control global network parameters. | |
e2e08e77 | 39 | Currently the DHCP Unique Identifier (DUID).</para> |
413708d1 VK |
40 | |
41 | </refsect1> | |
42 | ||
43 | <xi:include href="standard-conf.xml" xpointer="main-conf" /> | |
44 | ||
45 | <refsect1> | |
e2e08e77 | 46 | <title>[DHCP] Section Options</title> |
413708d1 | 47 | |
95f4c7f5 | 48 | <para>This section configures the DHCP Unique Identifier (DUID) value used by DHCP |
413708d1 VK |
49 | protocol. DHCPv6 client protocol sends the DHCP Unique Identifier and the interface |
50 | Identity Association Identifier (IAID) to a DHCP server when acquiring a dynamic IPv6 | |
51 | address. DHCPv4 client protocol sends IAID and DUID to the DHCP server when acquiring | |
52 | a dynamic IPv4 address if <option>ClientIdentifier=duid</option>. IAID and DUID allows | |
53 | a DHCP server to uniquely identify the machine and the interface requesting a DHCP IP. | |
e2e08e77 ZJS |
54 | To configure IAID and ClientIdentifier, see |
55 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
56 | </para> | |
413708d1 | 57 | |
e2e08e77 | 58 | <para>The following options are understood:</para> |
413708d1 VK |
59 | |
60 | <variablelist class='network-directives'> | |
e2e08e77 ZJS |
61 | <varlistentry> |
62 | <term><varname>DUIDType=</varname></term> | |
63 | <listitem><para>Specifies how the DUID should be generated. See | |
64 | <ulink url="https://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink> | |
65 | for a description of all the options.</para> | |
66 | ||
67 | <para>The following values are understood: | |
68 | <variablelist> | |
69 | <varlistentry> | |
70 | <term><option>vendor</option> </term> | |
71 | <listitem><para>If <literal>DUIDType=vendor</literal>, then the DUID value will be generated using | |
72 | <literal>43793</literal> as the vendor identifier (systemd) and hashed contents of | |
73 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
74 | This is the default if <varname>DUIDType=</varname> is not specified. | |
75 | </para></listitem> | |
76 | </varlistentry> | |
77 | ||
78 | <varlistentry> | |
79 | <term><option>link-layer-time</option> </term> | |
80 | <term><option>link-layer</option> </term> | |
81 | <term><option>uuid</option> </term> | |
82 | <listitem><para>Those values are parsed and can be used to set the DUID type | |
83 | field, but DUID contents must be provided using <varname>DUIDRawData=</varname>. | |
84 | </para></listitem> | |
85 | </varlistentry> | |
86 | </variablelist> | |
87 | </para> | |
88 | ||
89 | <para>In all cases, <varname>DUIDRawData=</varname> can be used to override the | |
90 | actual DUID value that is used.</para></listitem> | |
91 | </varlistentry> | |
413708d1 | 92 | |
413708d1 | 93 | <varlistentry> |
e2e08e77 ZJS |
94 | <term><varname>DUIDRawData=</varname></term> |
95 | <listitem><para>Specifies the DHCP DUID value as a single newline-terminated, hexadecimal string, with each | |
96 | byte separated by <literal>:</literal>. The DUID that is sent is composed of the DUID type specified by | |
97 | <varname>DUIDType=</varname> and the value configured here.</para> | |
98 | ||
99 | <para>The DUID value specified here overrides the DUID that systemd-networkd generates using the machine-id | |
100 | from the <filename>/etc/machine-id</filename> file. To configure DUID per-network, see | |
2ac5fe95 | 101 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>. |
e2e08e77 ZJS |
102 | The configured DHCP DUID should conform to the specification in |
103 | <ulink url="http://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>, | |
104 | <ulink url="http://tools.ietf.org/html/rfc6355">RFC 6355</ulink>. To configure IAID, see | |
105 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum> | |
106 | </citerefentry>.</para> | |
107 | ||
108 | <example> | |
109 | <title>A <option>DUIDType=vendor</option> with a custom value</title> | |
110 | ||
111 | <programlisting>DUIDType=vendor | |
112 | DUIDRawData=00:00:ab:11:f9:2a:c2:77:29:f9:5c:00</programlisting> | |
113 | ||
114 | <para>This specifies a 14 byte DUID, with the type DUID-EN (<literal>00:02</literal>), enterprise number | |
115 | 43793 (<literal>00:00:ab:11</literal>), and identifier value <literal>f9:2a:c2:77:29:f9:5c:00</literal>. | |
116 | </para> | |
117 | </example> | |
118 | </listitem> | |
413708d1 VK |
119 | </varlistentry> |
120 | </variablelist> | |
121 | </refsect1> | |
122 | ||
413708d1 VK |
123 | <refsect1> |
124 | <title>See Also</title> | |
125 | <para> | |
126 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
127 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
128 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
129 | </para> | |
130 | </refsect1> | |
131 | ||
132 | </refentry> |