mir/kea
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/kea synced 2025-08-30 21:45:37 +00:00
Code Issues Releases Wiki Activity

[1948] Suggest listing all addresses in listen_on

Browse Source 
The guide is modified to suggest to list all the addresses explicitly
for a multi-homed server, since the wildcard addresses don't work well
yet.
This commit is contained in:
Michal 'vorner' Vaner
2012-05-24 12:55:24 +02:00
parent 2801bd9baa
commit 55a817bff1
1 changed files with 18 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
doc/guide/bind10-guide.xml
View File

@@ -1352,6 +1352,24 @@ This may be a temporary setting until then.
and <varname>port</varname> number.
By default, <command>b10-auth</command> listens on port 53
on the IPv6 (::) and IPv4 (0.0.0.0) wildcard addresses.
<note>
<simpara>
The default configuration is not appropriate for a multi-homed host.
In case you have multiple public IP addresses, it is possible the
query UDP packet comes through one interface and the answer goes out
through another. This will probably be dropped by the client, as it
has a different source address than the one it sent the query to. The
client would fall back on TCP after several attempts, which works
well in this situation, but it is clearly not ideal.
</simpara>
<simpara>
There are plans to solve the problem in a way the server will handle
it itself. But until it is actually implemented, it is recommended to
alter the configuration &mdash; remove the wildcard addresses and list all
addresses explicitly. Then the server will answer on the same
interface as the request came, preserving the correct address.
</simpara>
</note>
</simpara>
</listitem>
</varlistentry>