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network: refuse 169.254.0.0/24 and 169.254.255.0/24 for IPv4LLStartAddress=

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Follow-up for #23927.
This commit is contained in:
Yu Watanabe
2022-07-15 03:37:09 +09:00
parent c1dd250f18
commit d3efcd2def
5 changed files with 24 additions and 18 deletions
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man/systemd.network.xml
+5 -6
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@@ -401,12 +401,11 @@
<varlistentry>
<term><varname>IPv4LLStartAddress=</varname></term>
<listitem>
<para>Specifies the first IPv4 link-local address to try. Takes an IPv4 address
for example 169.254.1.2, from the link-local address range 169.254.0.0/16.
This setting may be useful if the device should always have the same address
as long as there is no address conflict. When unset, a random address will be automatically selected.
Defaults to unset.
</para>
<para>Specifies the first IPv4 link-local address to try. Takes an IPv4 address for example
169.254.1.2, from the link-local address range: 169.254.0.0/16 except for 169.254.0.0/24 and
169.254.255.0/24. This setting may be useful if the device should always have the same address
as long as there is no address conflict. When unset, a random address will be automatically
selected. Defaults to unset.</para>
</listitem>
</varlistentry>