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From: Patrick Schaaf <bof@bof.de>
To: Ramin Alidousti <ramin@cannon.eng.us.uu.net>
Cc: netfilter@lists.samba.org
Subject: Re: detection of the third tcp packet in a tcp connection setup
Date: Thu, 27 Jun 2002 20:53:19 +0200	[thread overview]
Message-ID: <20020627205319.E2890@oknodo.bof.de> (raw)
In-Reply-To: <20020627182753.GS31466@cannon.eng.us.uu.net>; from ramin@cannon.eng.us.uu.net on Thu, Jun 27, 2002 at 02:27:53PM -0400

Hi Ramin,

> Does anyone have a good solution to catch the third (ACK) packet
> in a tcp connection setup?

Maybe you could use the CONNMARK patch, found in patch-o-matic?
Mark the conntrack one way for the first packet of a new connection,
and later match on that mark, changing it to something else when that
match hits.

Thanks for a nice idea from the "how do I bend iptables into a
programming language" department. :-)

best regards
  Patrick


  parent reply	other threads:[~2002-06-27 18:53 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-06-27 18:27 detection of the third tcp packet in a tcp connection setup Ramin Alidousti
2002-06-27 18:36 ` Antony Stone
2002-06-27 18:52 ` Antony Stone
2002-06-27 19:08   ` Ramin Alidousti
2002-06-27 18:53 ` Patrick Schaaf [this message]
2002-06-27 19:04   ` Ramin Alidousti
2002-06-27 18:57 ` Maciej Soltysiak
2002-06-27 19:10 ` Joe Patterson
2002-06-27 19:30   ` Antony Stone
2002-06-27 19:44     ` Patrick Schaaf
2002-06-27 19:39       ` Ramin Alidousti
2002-06-27 19:49         ` Maciej Soltysiak
2002-06-27 21:41           ` Matthew G. Marsh
2002-06-27 19:44       ` Antony Stone
2002-06-27 19:57         ` Ramin Alidousti
2002-06-27 20:06           ` Antony Stone
2002-06-27 20:31             ` Ramin Alidousti
2002-06-27 20:36               ` Antony Stone
2002-06-27 19:50     ` Joe Patterson
2002-06-27 20:11       ` Patrick Schaaf
2002-06-27 21:23     ` James Mello

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