From owner-freebsd-current@freebsd.org  Thu Feb 11 10:14:53 2016
Return-Path: <owner-freebsd-current@freebsd.org>
Delivered-To: freebsd-current@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 74E6BA9FB74
 for <freebsd-current@mailman.ysv.freebsd.org>;
 Thu, 11 Feb 2016 10:14:53 +0000 (UTC)
 (envelope-from kp@vega.codepro.be)
Received: from venus.codepro.be (venus.codepro.be [IPv6:2a01:4f8:162:1127::2])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256
 bits))
 (Client CN "*.codepro.be", Issuer "Gandi Standard SSL CA 2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 3FCF62DF
 for <freebsd-current@freebsd.org>; Thu, 11 Feb 2016 10:14:52 +0000 (UTC)
 (envelope-from kp@vega.codepro.be)
Received: from vega.codepro.be (unknown [172.16.1.3])
 by venus.codepro.be (Postfix) with ESMTP id 1D059C37C;
 Thu, 11 Feb 2016 11:14:50 +0100 (CET)
Received: by vega.codepro.be (Postfix, from userid 1001)
 id 19096228C0; Thu, 11 Feb 2016 11:14:50 +0100 (CET)
Date: Thu, 11 Feb 2016 11:14:50 +0100
From: Kristof Provost <kp@FreeBSD.org>
To: Larry Rosenman <ler@lerctr.org>
Cc: Freebsd current <freebsd-current@freebsd.org>
Subject: Re: IPV6 TCP6 Slow Connect
Message-ID: <20160211101449.GI19084@vega.codepro.be>
References: <8ca0068954b5cb25891c3324b2e8c863@thebighonker.lerctr.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <8ca0068954b5cb25891c3324b2e8c863@thebighonker.lerctr.org>
X-Checked-By-NSA: Probably
User-Agent: Mutt/1.5.24 (2015-08-30)
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Feb 2016 10:14:53 -0000

On 2016-02-10 20:38:02 (-0600), Larry Rosenman <ler@lerctr.org> wrote:
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206904
> 
> I've also posted lots of info to freebsd-net, and not gotten any 
> response.
> 
> Summary:
> 
> Cable Modem-> EM0 on a pfSense Firewall (FreeBSD 10.1, pfSense 2.2.6)
>                set to dhcp6, and ask for a /56 prefix
> 
> EM1->LAN, set to track interface, prefix id 0, radvd running advertising 
> the 00 /64
> LAN-> borg.lerctr.org using lagg0, SLAAC (rtsold).  Gets an address, 
> icmp6 works, tcp6 times out.
>      -> win10 SLAAC, tcp6 works fine, as does icmp6.
> 
For this I'd start by taking packet captures of both the FreeBSD tcp6
connection and the win10 tcp6 connection. Finding the difference between
the two will likely go a long way in finding the cause.

Regards,
Kristof