From owner-freebsd-current@freebsd.org Fri Feb 12 14:13:40 2016 Return-Path: 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 41EA4AA62E3; Fri, 12 Feb 2016 14:13:40 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [IPv6:2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "thebighonker.lerctr.org", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1E2A8A58; Fri, 12 Feb 2016 14:13:40 +0000 (UTC) (envelope-from ler@lerctr.org) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=lerami; h=Message-ID:References:In-Reply-To:Subject:Cc:To:From:Date: Content-Transfer-Encoding:Content-Type:MIME-Version; bh=T96rEGt3BexyvBBTTpMG1CIaKGJjgrUiJYgMWYDWUec=; b=b8M9gkxDgB9jWQoQSR8S0fjiMs ayxINeka16vrIvWHfc5IHu8YS/IkAlZUCcqG87Hx5/1fk4y21nsd6/RfCD8H5MdbMLgOJf8JVaZE8 pLMPJr5RilKaRu/HFuvmH+wi8t/GZQsMyr+2mLKLqeguKiCp9l00jriyfgeFIxamhTAA=; Received: from thebighonker.lerctr.org ([2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]:42858 helo=webmail.lerctr.org) by thebighonker.lerctr.org with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.86 (FreeBSD)) (envelope-from ) id 1aUETb-0003rV-6V; Fri, 12 Feb 2016 08:13:39 -0600 Received: from proxy.lucent.com ([135.245.49.14]) by webmail.lerctr.org with HTTP (HTTP/1.1 POST); Fri, 12 Feb 2016 08:13:39 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 12 Feb 2016 08:13:39 -0600 From: Larry Rosenman To: Kristof Provost Cc: Freebsd current , owner-freebsd-current@freebsd.org Subject: Re: IPV6 TCP6 Slow Connect In-Reply-To: References: <8ca0068954b5cb25891c3324b2e8c863@thebighonker.lerctr.org> <20160211101449.GI19084@vega.codepro.be> <88197BB9-F03F-48BB-97DC-9BAAA2FA299F@FreeBSD.org> <125b65d56d310c0436ceb8047d1d0417@thebighonker.lerctr.org> <563b81912fc2de4670be51a832467ba9@thebighonker.lerctr.org> <06d72e0d3ae9f20bea04af39dba74847@thebighonker.lerctr.org> Message-ID: <33469a0ef87e3299819248f153d842d2@thebighonker.lerctr.org> X-Sender: ler@lerctr.org User-Agent: Roundcube Webmail/1.1.4 X-Spam-Score: -1.0 (-) X-LERCTR-Spam-Score: -1.0 (-) X-Spam-Report: SpamScore (-1.0/5.0) ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 X-LERCTR-Spam-Report: SpamScore (-1.0/5.0) ALL_TRUSTED=-1, SHORTCIRCUIT=-0.0001 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Feb 2016 14:13:40 -0000 On 2016-02-12 08:02, Kristof Provost wrote: >> On 12 Feb 2016, at 10:18, Larry Rosenman wrote: >> >> On 2016-02-11 20:50, Larry Rosenman wrote: >>> On 2016-02-11 14:40, Larry Rosenman wrote: >>>> On 2016-02-11 14:25, Kristof Provost wrote: >>>> On 11 Feb 2016, at 21:23, Larry Rosenman wrote: >>>> From which system(s) perspective do you want the packet captures? >>>> (Firewall, FreeBSD, Windows)? I wouldn't expect it to make much of a >>>> difference in this case. >>>> Let's start with whatever is easiest. >>>> Regards, >>>> Kristof >>> I'll try and get these tonight when I am home, after a meetup. >>> (will be late US/CST). >>> -- >>> Larry Rosenman http://www.lerctr.org/~ler >>> Phone: +1 214-642-9640 E-Mail: ler@lerctr.org >>> US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961 >>> at http://www.lerctr.org/~ler/FreeBSD/win10.pcap >> the 403 issue is fixed (forgot to chmod the file) >>> http://www.lerctr.org/~ler/FreeBSD/fbsd11.pcap >> URL corrected. >> > At first glance the only difference is that FreeBSD includes > timestamps (and has a larger window scaling factor). > It might be worth turning that off to see if it makes a difference. > > sysctl net.inet.tcp.rfc1323=1 should do the trick. > > Regards, > Kristof sysctl net.inet.tcp.rfc1323=0 makes it work -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961