From owner-freebsd-ipfw@freebsd.org  Wed Nov 18 14:17:49 2015
Return-Path: <owner-freebsd-ipfw@freebsd.org>
Delivered-To: freebsd-ipfw@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 9EF41A31143
 for <freebsd-ipfw@mailman.ysv.freebsd.org>;
 Wed, 18 Nov 2015 14:17:49 +0000 (UTC)
 (envelope-from julian@freebsd.org)
Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 76CBB1FEB
 for <freebsd-ipfw@freebsd.org>; Wed, 18 Nov 2015 14:17:49 +0000 (UTC)
 (envelope-from julian@freebsd.org)
Received: from Julian-MBP3.local (ppp121-45-231-48.lns20.per1.internode.on.net
 [121.45.231.48]) (authenticated bits=0)
 by vps1.elischer.org (8.15.2/8.15.2) with ESMTPSA id tAIEHYMf033001
 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO);
 Wed, 18 Nov 2015 06:17:37 -0800 (PST)
 (envelope-from julian@freebsd.org)
Subject: Re: Kernel NAT issues
To: Nathan Aherne <nathan@reddog.com.au>, Ian Smith <smithi@nimnet.asn.au>
References: <94B91F98-DE01-4A10-8AB5-4193FE11AF3F@reddog.com.au>
 <20151013142301.B67283@sola.nimnet.asn.au>
 <C1C25100-FBD4-42F4-94F7-965B270D927F@reddog.com.au>
 <20151014232026.S15983@sola.nimnet.asn.au>
 <9908EC22-344F-4D0B-8930-7D2C70B084A1@reddog.com.au>
 <32DEEFB3-E41F-40CD-8E1A-520FB261C572@reddog.com.au>
Cc: freebsd-ipfw@freebsd.org
From: Julian Elischer <julian@freebsd.org>
Message-ID: <564C8879.8070307@freebsd.org>
Date: Wed, 18 Nov 2015 22:17:29 +0800
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0)
 Gecko/20100101 Thunderbird/38.3.0
MIME-Version: 1.0
In-Reply-To: <32DEEFB3-E41F-40CD-8E1A-520FB261C572@reddog.com.au>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-ipfw@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: IPFW Technical Discussions <freebsd-ipfw.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-ipfw>,
 <mailto:freebsd-ipfw-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ipfw/>
List-Post: <mailto:freebsd-ipfw@freebsd.org>
List-Help: <mailto:freebsd-ipfw-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
 <mailto:freebsd-ipfw-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 18 Nov 2015 14:17:49 -0000

On 11/18/15 8:40 AM, Nathan Aherne wrote:
> For some reason hairpin (loopback nat or nat reflection) does not seem to be working, which is why I chose IPFW in the first place.
it would be good to see a diagram of what this actually means.