summaryrefslogtreecommitdiff
path: root/man/networkd.conf.xml
diff options
context:
space:
mode:
authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-04-29 20:16:55 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-05-03 12:26:43 -0400
commite2e08e77cc6b13cc8b3658ad504814834a0e9872 (patch)
tree95133011c6ccc6f8f8040c65977922010adbbde8 /man/networkd.conf.xml
parent23caf9baf2e9a3b83b8e739fb7d17151cd08280d (diff)
man: add a description of DUIDType and DUIDRawData
This is essentially a revert of f38e0cce75ff2ffbd99f7e382ed39c160bb7d799 (which removed the documentation of DUIDType on purpose). The description is heavily updated for the new semantics. This addresses #3127 § 4.
Diffstat (limited to 'man/networkd.conf.xml')
-rw-r--r--man/networkd.conf.xml81
1 files changed, 62 insertions, 19 deletions
diff --git a/man/networkd.conf.xml b/man/networkd.conf.xml
index 5166e05cbc..4bfc4f773a 100644
--- a/man/networkd.conf.xml
+++ b/man/networkd.conf.xml
@@ -58,14 +58,14 @@
<title>Description</title>
<para>These configuration files control global network parameters.
- For e.g. DHCP Unique Identifier (DUID).</para>
+ Currently the DHCP Unique Identifier (DUID).</para>
</refsect1>
<xi:include href="standard-conf.xml" xpointer="main-conf" />
<refsect1>
- <title>[DUID] Section Options</title>
+ <title>[DHCP] Section Options</title>
<para>This section configures the DHCP Unique Identifier (DUID) value used by DHCP
protocol. DHCPv6 client protocol sends the DHCP Unique Identifier and the interface
@@ -73,28 +73,71 @@
address. DHCPv4 client protocol sends IAID and DUID to the DHCP server when acquiring
a dynamic IPv4 address if <option>ClientIdentifier=duid</option>. IAID and DUID allows
a DHCP server to uniquely identify the machine and the interface requesting a DHCP IP.
- To configure IAID and ClientIdentifier, see <citerefentry><refentrytitle>systemd.network
- </refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+ To configure IAID and ClientIdentifier, see
+ <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para>
- <para>The DUID value specified here overrides the DUID that systemd-networkd
- generates using the machine-id from the <filename>/etc/machine-id</filename> file.
- To configure DUID per-network, see <citerefentry><refentrytitle>systemd.network
- </refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
-
- <para>The configured DHCP DUID should conform to the specification in
- <ulink url="http://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>,
- <ulink url="http://tools.ietf.org/html/rfc6355">RFC 6355</ulink>. To configure IAID, see
- <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum>
- </citerefentry>.</para>
-
- <para>The following options are available in <literal>[DUID]</literal> section:</para>
+ <para>The following options are understood:</para>
<variablelist class='network-directives'>
+ <varlistentry>
+ <term><varname>DUIDType=</varname></term>
+ <listitem><para>Specifies how the DUID should be generated. See
+ <ulink url="https://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>
+ for a description of all the options.</para>
+
+ <para>The following values are understood:
+ <variablelist>
+ <varlistentry>
+ <term><option>vendor</option> </term>
+ <listitem><para>If <literal>DUIDType=vendor</literal>, then the DUID value will be generated using
+ <literal>43793</literal> as the vendor identifier (systemd) and hashed contents of
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ This is the default if <varname>DUIDType=</varname> is not specified.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>link-layer-time</option> </term>
+ <term><option>link-layer</option> </term>
+ <term><option>uuid</option> </term>
+ <listitem><para>Those values are parsed and can be used to set the DUID type
+ field, but DUID contents must be provided using <varname>DUIDRawData=</varname>.
+ </para></listitem>
+ </varlistentry>
+ </variablelist>
+ </para>
+
+ <para>In all cases, <varname>DUIDRawData=</varname> can be used to override the
+ actual DUID value that is used.</para></listitem>
+ </varlistentry>
<varlistentry>
- <term><varname>RawData=</varname></term>
- <listitem><para>Specifies the DUID bytes as a single newline-terminated, hexadecimal
- string, with each byte separated by a ':'.</para></listitem>
+ <term><varname>DUIDRawData=</varname></term>
+ <listitem><para>Specifies the DHCP DUID value as a single newline-terminated, hexadecimal string, with each
+ byte separated by <literal>:</literal>. The DUID that is sent is composed of the DUID type specified by
+ <varname>DUIDType=</varname> and the value configured here.</para>
+
+ <para>The DUID value specified here overrides the DUID that systemd-networkd generates using the machine-id
+ from the <filename>/etc/machine-id</filename> file. To configure DUID per-network, see
+ <citerefentry><refentrytitle>systemd.network </refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ The configured DHCP DUID should conform to the specification in
+ <ulink url="http://tools.ietf.org/html/rfc3315#section-9">RFC 3315</ulink>,
+ <ulink url="http://tools.ietf.org/html/rfc6355">RFC 6355</ulink>. To configure IAID, see
+ <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum>
+ </citerefentry>.</para>
+
+ <example>
+ <title>A <option>DUIDType=vendor</option> with a custom value</title>
+
+ <programlisting>DUIDType=vendor
+DUIDRawData=00:00:ab:11:f9:2a:c2:77:29:f9:5c:00</programlisting>
+
+ <para>This specifies a 14 byte DUID, with the type DUID-EN (<literal>00:02</literal>), enterprise number
+ 43793 (<literal>00:00:ab:11</literal>), and identifier value <literal>f9:2a:c2:77:29:f9:5c:00</literal>.
+ </para>
+ </example>
+ </listitem>
</varlistentry>
</variablelist>
</refsect1>