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514094f9 | 1 | <?xml version='1.0'?> |
3a54a157 | 2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
4 | ||
5 | <!-- | |
db9ecf05 | 6 | SPDX-License-Identifier: LGPL-2.1-or-later |
572eb058 | 7 | |
96b2fb93 | 8 | Copyright © 2014 Vinay Kulkarni |
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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> | |
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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> |
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40 | |
41 | </refsect1> | |
42 | ||
43 | <xi:include href="standard-conf.xml" xpointer="main-conf" /> | |
44 | ||
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45 | <refsect1> |
46 | <title>[Network] Section Options</title> | |
47 | ||
bdac5608 | 48 | <para>The following options are available in the [Network] section:</para> |
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49 | |
50 | <variablelist class='network-directives'> | |
51 | <varlistentry> | |
52 | <term><varname>SpeedMeter=</varname></term> | |
53 | <listitem><para>Takes a boolean. If set to yes, then <command>systemd-networkd</command> | |
54 | measures the traffic of each interface, and | |
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55 | <command>networkctl status <replaceable>INTERFACE</replaceable></command> shows the measured speed. |
56 | Defaults to no.</para></listitem> | |
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57 | </varlistentry> |
58 | ||
59 | <varlistentry> | |
60 | <term><varname>SpeedMeterIntervalSec=</varname></term> | |
61 | <listitem><para>Specifies the time interval to calculate the traffic speed of each interface. | |
62 | If <varname>SpeedMeter=no</varname>, the value is ignored. Defaults to 10sec.</para></listitem> | |
63 | </varlistentry> | |
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64 | |
65 | <varlistentry> | |
66 | <term><varname>ManageForeignRoutes=</varname></term> | |
67 | <listitem><para>A boolean. When true, <command>systemd-networkd</command> will store any routes | |
68 | configured by other tools in its memory. When false, <command>systemd-networkd</command> will | |
69 | not manage the foreign routes, thus they are kept even if <varname>KeepConfiguration=</varname> | |
70 | is false. Defaults to yes.</para></listitem> | |
71 | </varlistentry> | |
72 | ||
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73 | <varlistentry> |
74 | <term><varname>RouteTable=</varname></term> | |
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75 | <listitem><para>Defines the route table name. Takes a whitespace-separated list of the pairs of |
76 | route table name and number. The route table name and number in each pair are separated with a | |
77 | colon, i.e., <literal><replaceable>name</replaceable>:<replaceable>number</replaceable></literal>. | |
78 | The route table name must not be <literal>default</literal>, <literal>main</literal>, or | |
79 | <literal>local</literal>, as these route table names are predefined with route table number 253, | |
80 | 254, and 255, respectively. The route table number must be an integer in the range 1…4294967295. | |
81 | This setting can be specified multiple times. If an empty string is specified, then the list | |
82 | specified earlier are cleared. Defaults to unset.</para></listitem> | |
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83 | </varlistentry> |
84 | ||
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85 | </variablelist> |
86 | </refsect1> | |
87 | ||
413708d1 | 88 | <refsect1> |
e2e08e77 | 89 | <title>[DHCP] Section Options</title> |
413708d1 | 90 | |
95f4c7f5 | 91 | <para>This section configures the DHCP Unique Identifier (DUID) value used by DHCP |
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92 | protocol. DHCPv6 client protocol sends the DHCP Unique Identifier and the interface |
93 | Identity Association Identifier (IAID) to a DHCP server when acquiring a dynamic IPv6 | |
94 | address. DHCPv4 client protocol sends IAID and DUID to the DHCP server when acquiring | |
95 | a dynamic IPv4 address if <option>ClientIdentifier=duid</option>. IAID and DUID allows | |
96 | a DHCP server to uniquely identify the machine and the interface requesting a DHCP IP. | |
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97 | To configure IAID and ClientIdentifier, see |
98 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
99 | </para> | |
413708d1 | 100 | |
e2e08e77 | 101 | <para>The following options are understood:</para> |
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102 | |
103 | <variablelist class='network-directives'> | |
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104 | <varlistentry> |
105 | <term><varname>DUIDType=</varname></term> | |
106 | <listitem><para>Specifies how the DUID should be generated. See | |
107 | <ulink url="https://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink> | |
108 | for a description of all the options.</para> | |
109 | ||
110 | <para>The following values are understood: | |
111 | <variablelist> | |
112 | <varlistentry> | |
319b94bc | 113 | <term><option>vendor</option></term> |
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114 | <listitem><para>If <literal>DUIDType=vendor</literal>, then the DUID value will be generated using |
115 | <literal>43793</literal> as the vendor identifier (systemd) and hashed contents of | |
116 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
117 | This is the default if <varname>DUIDType=</varname> is not specified. | |
118 | </para></listitem> | |
119 | </varlistentry> | |
120 | ||
121 | <varlistentry> | |
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122 | <term><option>uuid</option></term> |
123 | <listitem><para>If <literal>DUIDType=uuid</literal>, and <varname>DUIDRawData=</varname> is not set, | |
124 | then the product UUID is used as a DUID value. If a system does not have valid product UUID, then | |
125 | an application-specific | |
126 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
127 | is used as a DUID value. About the application-specific machine ID, see | |
128 | <citerefentry><refentrytitle>sd_id128_get_machine_app_specific</refentrytitle><manvolnum>3</manvolnum></citerefentry>. | |
129 | </para></listitem> | |
130 | </varlistentry> | |
131 | ||
132 | <varlistentry> | |
8fa266c2 | 133 | <term><option>link-layer-time[:<replaceable>TIME</replaceable>]</option></term> |
319b94bc | 134 | <term><option>link-layer</option></term> |
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135 | <listitem><para>If <literal>link-layer-time</literal> or <literal>link-layer</literal> is specified, |
136 | then the MAC address of the interface is used as a DUID value. The value <literal>link-layer-time</literal> | |
137 | can take additional time value after a colon, e.g. <literal>link-layer-time:2018-01-23 12:34:56 UTC</literal>. | |
138 | The default time value is <literal>2000-01-01 00:00:00 UTC</literal>. | |
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139 | </para></listitem> |
140 | </varlistentry> | |
141 | </variablelist> | |
142 | </para> | |
143 | ||
144 | <para>In all cases, <varname>DUIDRawData=</varname> can be used to override the | |
145 | actual DUID value that is used.</para></listitem> | |
146 | </varlistentry> | |
413708d1 | 147 | |
413708d1 | 148 | <varlistentry> |
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149 | <term><varname>DUIDRawData=</varname></term> |
150 | <listitem><para>Specifies the DHCP DUID value as a single newline-terminated, hexadecimal string, with each | |
151 | byte separated by <literal>:</literal>. The DUID that is sent is composed of the DUID type specified by | |
152 | <varname>DUIDType=</varname> and the value configured here.</para> | |
153 | ||
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154 | <para>The DUID value specified here overrides the DUID that |
155 | <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
156 | generates from the machine ID. To configure DUID per-network, see | |
2ac5fe95 | 157 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>. |
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158 | The configured DHCP DUID should conform to the specification in |
159 | <ulink url="http://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>, | |
160 | <ulink url="http://tools.ietf.org/html/rfc6355">RFC 6355</ulink>. To configure IAID, see | |
161 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum> | |
162 | </citerefentry>.</para> | |
163 | ||
164 | <example> | |
165 | <title>A <option>DUIDType=vendor</option> with a custom value</title> | |
166 | ||
167 | <programlisting>DUIDType=vendor | |
168 | DUIDRawData=00:00:ab:11:f9:2a:c2:77:29:f9:5c:00</programlisting> | |
169 | ||
170 | <para>This specifies a 14 byte DUID, with the type DUID-EN (<literal>00:02</literal>), enterprise number | |
171 | 43793 (<literal>00:00:ab:11</literal>), and identifier value <literal>f9:2a:c2:77:29:f9:5c:00</literal>. | |
172 | </para> | |
173 | </example> | |
174 | </listitem> | |
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175 | </varlistentry> |
176 | </variablelist> | |
177 | </refsect1> | |
178 | ||
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179 | <refsect1> |
180 | <title>See Also</title> | |
181 | <para> | |
182 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
183 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
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184 | <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
185 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
186 | <citerefentry><refentrytitle>sd_id128_get_machine_app_specific</refentrytitle><manvolnum>3</manvolnum></citerefentry> | |
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187 | </para> |
188 | </refsect1> | |
189 | ||
190 | </refentry> |