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Date:      Sun, 21 Oct 2001 10:17:57 +1000
From:      Kal Torak <kaltorak@quake.com.au>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   ICQ with NAT problems
Message-ID:  <3BD21435.4060605@quake.com.au>

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Hi,

I have noticed that icq wont work correctly through a nat
gateway (not just freebsd's nat)... There are two major
problems, you cant send or recive files, and you constantly
go offline/online about every 5 mins or so...

I was able to solve the file sending problem by redirecting
a range of ports with nat and configuring icq to use them,
but the constant disconnecting I have not been able to fix...

Looking through the archives of this list there are a few
posts on the subject but no real answers, it seems the only
way around it has been to use a socks proxy, which I really
dont want to do!

Some people have said that icq uses udp between the server
and client, and because of the time between the packets the
socket has been removed form the nat table by the time the
next one is sent and it doesnt get through causing you to get
disconnected... I have seen something for linux called icq-masq
which is a kernel moduel that seems to fix these problems for
linux's ip masqurading...

Anyway, has anyone solved this problem? or would perhaps be
interested in fixing it? Anyone have any ideas?

Thanks!


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