Colin Watson writes:
> [Eduard Bloch:]
>> plink -L does not work for me, because it listens only to the v6
>> socket on the localhost interface. I.e. the v4 socket is not bound,
>> regular v4 programs cannot use it.
>> [snip details]
> 
> This is a notorious swamp and it took OpenSSH several goes to get it
> right. I think the basic difference between OpenSSH and PuTTY here is
> that OpenSSH loops round and binds to all available interfaces, while (I
> think) PuTTY stops once a single bind succeeds.

This report is against 0.58. Since then (in fact, since 0.60, so only
in development snapshots) we've changed the behaviour, as described at
<http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/portfwd-addr-family.html>;
this was partly prompted by a bug report against Ubuntu,
<https://bugs.launchpad.net/ubuntu/+source/putty/+bug/67488>.

Have we got it right yet, or are we still blundering around in the
swamp?

(I haven't tried to digest the details of Eduard's bug report re the
finer points of getaddrinfo() invocation etc.)



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