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man: mention limit about prefix length when null address is specified to Address=

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Yu Watanabe 2019-02-20 19:01:49 +09:00
parent c9207ff3a4
commit e6ef3a130f
1 changed files with 8 additions and 12 deletions
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man/systemd.network.xml
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@ -479,18 +479,14 @@
specified more than once. specified more than once.
</para> </para>
<para>If the specified address is 0.0.0.0 (for IPv4) or <para>If the specified address is <literal>0.0.0.0</literal> (for IPv4) or <literal>::</literal>
[::] (for IPv6), a new address range of the requested size (for IPv6), a new address range of the requested size is automatically allocated from a
is automatically allocated from a system-wide pool of system-wide pool of unused ranges. Note that the prefix length must be equal or larger than 8 for
unused ranges. The allocated range is checked against all IPv4, and 64 for IPv6. The allocated range is checked against all current network interfaces and
current network interfaces and all known network all known network configuration files to avoid address range conflicts. The default system-wide
configuration files to avoid address range conflicts. The pool consists of 192.168.0.0/16, 172.16.0.0/12 and 10.0.0.0/8 for IPv4, and fd00::/8 for IPv6.
default system-wide pool consists of 192.168.0.0/16, This functionality is useful to manage a large number of dynamically created network interfaces
172.16.0.0/12 and 10.0.0.0/8 for IPv4, and fc00::/7 for with the same network configuration and automatic address range assignment.</para>
IPv6. This functionality is useful to manage a large
number of dynamically created network interfaces with the
same network configuration and automatic address range
assignment.</para>
</listitem> </listitem>
</varlistentry> </varlistentry>