talk patch

From kadlec@blackhole.kfki.hu Mon Sep 17 10:54:28 2001
Date: Wed, 9 May 2001 09:39:19 +0200 (CEST)
From: Jozsef Kadlecsik 
To: Richard Gooch 
Subject: Re: [PATCH] talk support modules for conntrack and NAT

Hello,

I think I found the reason why the talk NAT module fails in your case:
there is (was) a netfilter feature, which prevented *any* NAT helper to
see and mangle the very first packet in every session. In the case of
newer talk packages (like mine), it doesn't cause any problem, because the
talk daemon connects back to the client address according to the socket
and not according to the address carried in the payload.

Please upgrade to linux-2.4.4, which contains a fixed netfilter, so all
packets are available for the NAT helpers. Download neftilter
from cvs and replace the talk-conntrack-nat patch in p-o-m with the
attached one (there were some stylistic changes, which causes the
original patch to fail :-(). Please note, it depends again on the
dropped-table patch.

Please let me know if it helps - I will then publish the new patch on the
netfilter list with the problem description.