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man: update [DHCPServer] ServerAddress=

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Yu Watanabe 2023-09-08 04:08:32 +09:00
parent a0dfce0a3f
commit e443a88a9a
1 changed files with 36 additions and 5 deletions
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41
man/systemd.network.xml
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@ -3276,12 +3276,43 @@ Token=prefixstable:2002:da8:1::</programlisting></para>
<varlistentry>
<term><varname>ServerAddress=</varname></term>
<listitem><para>Specifies server address for the DHCP server. Takes an IPv4 address with prefix
length, for example 192.168.0.1/24. This setting may be useful when the link on
which the DHCP server is running has multiple static addresses. When unset, one of static addresses
in the link will be automatically selected. Defaults to unset.</para>
<listitem>
<para>Specifies the server address for the DHCP server. Takes an IPv4 address with prefix length
separated with a slash, e.g. <literal>192.168.0.1/24</literal>. Defaults to unset, and one of
static IPv4 addresses configured in [Network] or [Address] section will be automatically selected.
This setting may be useful when the interface on which the DHCP server is running has multiple
static IPv4 addresses.</para>
<para>This implies <varname>Address=</varname> in [Network] or [Address] section with the same
address and prefix length. That is,
<programlisting>[Network]
DHCPServer=yes
Address=192.168.0.1/24
Address=192.168.0.2/24
[DHCPServer]
ServerAddress=192.168.0.1/24</programlisting>
or
<programlisting>[Network]
DHCPServer=yes
[Address]
Address=192.168.0.1/24
[Address]
Address=192.168.0.2/24
[DHCPServer]
ServerAddress=192.168.0.1/24</programlisting>
are equivalent to the following.
<programlisting>[Network]
DHCPServer=yes
Address=192.168.0.2/24
[DHCPServer]
ServerAddress=192.168.0.1/24</programlisting>
</para>
<para>Since version 255, like the <varname>Address=</varname> setting in [Network] or [Address]
section, this also supports a null address, e.g. <literal>0.0.0.0/24</literal>, and an unused
address will be automatically selected. For more details about the automatic address selection,
see <varname>Address=</varname> setting in [Network] section in the above.</para>
<xi:include href="version-info.xml" xpointer="v249"/></listitem>
<xi:include href="version-info.xml" xpointer="v249"/>
</listitem>
</varlistentry>
<varlistentry>