From owner-freebsd-net@FreeBSD.ORG  Tue Aug 21 13:50:53 2007
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 309FB16A481
	for <freebsd-net@freebsd.org>; Tue, 21 Aug 2007 13:50:53 +0000 (UTC)
	(envelope-from dhartmei@insomnia.benzedrine.cx)
Received: from insomnia.benzedrine.cx (insomnia.benzedrine.cx
	[IPv6:2001:6f8:1098::2])
	by mx1.freebsd.org (Postfix) with ESMTP id CF0FA13C4E9
	for <freebsd-net@freebsd.org>; Tue, 21 Aug 2007 13:50:52 +0000 (UTC)
	(envelope-from dhartmei@insomnia.benzedrine.cx)
Received: from insomnia.benzedrine.cx (localhost.benzedrine.cx [127.0.0.1])
	by insomnia.benzedrine.cx (8.14.1/8.13.4) with ESMTP id l7LDonh3030201
	(version=TLSv1/SSLv3 cipher=DHE-DSS-AES256-SHA bits=256 verify=NO);
	Tue, 21 Aug 2007 15:50:49 +0200 (MEST)
Received: (from dhartmei@localhost)
	by insomnia.benzedrine.cx (8.14.1/8.12.10/Submit) id l7LDomm2004556;
	Tue, 21 Aug 2007 15:50:48 +0200 (MEST)
Date: Tue, 21 Aug 2007 15:50:48 +0200
From: Daniel Hartmeier <daniel@benzedrine.cx>
To: Jacek Zapala <jacek@ipv6.jacek.it.pl>
Message-ID: <20070821135048.GA32421@insomnia.benzedrine.cx>
References: <200708211010.l7LAA6V7082258@freefall.freebsd.org>
	<20070821121118.GF27160@insomnia.benzedrine.cx>
	<1187703472.22531.4.camel@localhost.localdomain>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1187703472.22531.4.camel@localhost.localdomain>
User-Agent: Mutt/1.5.12-2006-07-14
Cc: freebsd-net@freebsd.org
Subject: Re: kern/115413: [ipv6] ipv6 pmtu not working
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: Tue, 21 Aug 2007 13:50:53 -0000

On Tue, Aug 21, 2007 at 03:37:52PM +0200, Jacek Zapala wrote:

> Attached.

Thanks, I'll study them.

Since you're using TCP window scaling, could you try disabling that
(sysctl net.inet.tcp.rfc1323=0 on either peer), and see if it affects
things? Just to make sure that's not a part of the problem.

Daniel