From owner-freebsd-net@FreeBSD.ORG  Thu Sep  8 02:53:54 2005
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
X-Original-To: freebsd-net@freebsd.org
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id D3C2F16A41F
	for <freebsd-net@freebsd.org>; Thu,  8 Sep 2005 02:53:54 +0000 (GMT)
	(envelope-from on@cs.ait.ac.th)
Received: from mail.cs.ait.ac.th (mail.cs.ait.ac.th [192.41.170.16])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8BFCB43D49
	for <freebsd-net@freebsd.org>; Thu,  8 Sep 2005 02:53:52 +0000 (GMT)
	(envelope-from on@cs.ait.ac.th)
Received: from banyan.cs.ait.ac.th (banyan.cs.ait.ac.th [192.41.170.5])
	by mail.cs.ait.ac.th (8.12.11/8.12.11) with ESMTP id j882oXAP058987
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO)
	for <freebsd-net@freebsd.org>; Thu, 8 Sep 2005 09:50:33 +0700 (ICT)
Received: (from on@localhost)
	by banyan.cs.ait.ac.th (8.13.1/8.12.11) id j882q7Zd016389;
	Thu, 8 Sep 2005 09:52:07 +0700 (ICT)
Date: Thu, 8 Sep 2005 09:52:07 +0700 (ICT)
Message-Id: <200509080252.j882q7Zd016389@banyan.cs.ait.ac.th>
From: Olivier Nicole <on@cs.ait.ac.th>
To: freebsd-net@freebsd.org
X-Virus-Scanned: on CSIM by amavisd-milter (http://www.amavis.org/)
Subject: Connection reset
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 08 Sep 2005 02:53:55 -0000

Hi,

I am trying to run NoCat (from the ports). One thing NoCat does is run
a TCP listener on port 5280.

When I try to connect to that port "by hand" (telnet xxx 5280)
everything goes fine.

When I try to connect via a redirection through the firewall, I got a
RST after the SYN, SYN/ACK, ACK.

What could be the reason that the connection is reset by the server at
that stage?

The server is build around Perl IO::Socket

Thanks,

Olivier