From owner-freebsd-net@FreeBSD.ORG  Thu Jan 24 13:49:07 2008
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 C345216A419;
	Thu, 24 Jan 2008 13:49:07 +0000 (UTC)
	(envelope-from maxim@macomnet.ru)
Received: from mp2.macomnet.net (mp2.macomnet.net [195.128.64.6])
	by mx1.freebsd.org (Postfix) with ESMTP id 51EEB13C46E;
	Thu, 24 Jan 2008 13:49:06 +0000 (UTC)
	(envelope-from maxim@macomnet.ru)
Received: from localhost (localhost.int.ru [127.0.0.1] (may be forged))
	by mp2.macomnet.net (8.13.7/8.13.8) with ESMTP id m0ODn5jj037307;
	Thu, 24 Jan 2008 16:49:05 +0300 (MSK)
	(envelope-from maxim@macomnet.ru)
Date: Thu, 24 Jan 2008 16:49:05 +0300 (MSK)
From: Maxim Konovalov <maxim@macomnet.ru>
To: Andre Oppermann <andre@freebsd.org>
In-Reply-To: <47988A2A.5010506@freebsd.org>
Message-ID: <20080124164704.X15031@mp2.macomnet.net>
References: <200711200656.lAK6u4bc021279@repoman.freebsd.org>
	<4797B77E.2090605@freebsd.org>
	<20080124005006.D93697@odysseus.silby.com>
	<47986F27.10401@freebsd.org> <20080124145713.K15031@mp2.macomnet.net>
	<47988A2A.5010506@freebsd.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Cc: freebsd-net@freebsd.org
Subject: Re: cvs commit: src/sys/netinet tcp_syncache.c
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, 24 Jan 2008 13:49:07 -0000

On Thu, 24 Jan 2008, 13:52+0100, Andre Oppermann wrote:

> Maxim Konovalov wrote:
> > [...]
> > > > I'm not generally opposed to security improvements that only affect edge
> > > > cases... but being unable to connect is not an edge case!
> > > Fully agreed.  I'll reopen the PR and follow up with the originator
> > > to do some further analysis.  All operating system he cites that were
> > > unable to connect correctly send timestamps and do not stop after
> > > the SYN phase.  So there must be something else at play here.  Have
> > > you received or heart of any *other* reports that may be related to
> > > the timestamp check?
> > >
> > I saw this with my adsl router.  Happy to test patches.
>
> Please provide a tcpdump of a connection that failed before.  It'll
> show the problem even though it doesn't cause an abort.  Was the
> problem you saw with communication through the adsl router, or when
> you connected to the adsl router itself (configuration menu, etc)?
>
The latter.  Turning rfc1323 off solved the problem.

It takes some time to obtain the dump -- I need to downgrade the
system.

-- 
Maxim Konovalov