From owner-freebsd-net@FreeBSD.ORG Thu Apr 7 17:19:01 2005 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EEADA16A4CE for ; Thu, 7 Apr 2005 17:19:01 +0000 (GMT) Received: from cwb.pacific.net.hk (cwb.pacific.net.hk [202.14.67.92]) by mx1.FreeBSD.org (Postfix) with ESMTP id 355E943D1D for ; Thu, 7 Apr 2005 17:19:01 +0000 (GMT) (envelope-from jmok@attglobal.net) Received: from [192.168.16.50] (154.159.17.210.fixed.pacific.net.hk [210.17.159.154]) by cwb.pacific.net.hk with ESMTP id j37HItOu003649; Fri, 8 Apr 2005 01:18:59 +0800 (CST) Message-ID: <42556B7E.5030703@attglobal.net> Date: Fri, 08 Apr 2005 01:18:54 +0800 From: John Mok User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: tms3@fsklaw.com References: <42555C87.7030700@attglobal.net> <425550E6.3080005@fsklaw.com> In-Reply-To: <425550E6.3080005@fsklaw.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-net@freebsd.org Subject: Re: FreeBSD Firewall + NAT Traversal + IPsec X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Apr 2005 17:19:02 -0000 Dear Tom, Thank you for your quick reply. I would like to know more on the issue. To my understanding, since the source address of the IP packet from the client would be modified on the NAT, normally it would fail AH check on the IPsec VPN gateway, or the FreeBSD NAT has built-in compliance with RFC3947? Thank you, John Mok Tom Skeren wrote: > John Mok wrote: > >> Hi, >> >> I'm new to FreeBSD. Is it possible make a FreeBSD box with firewall + >> NAT, such that client PC(s) from the NATed internal network could >> connect to a VPN gateway on the Internet :- >> >> client PC ----- FreeBSD Firewall + NAT ---- Internet ---- IPsec VPN >> gateway >> 192.168.x.x/16 (e.g. >> Checkpoint FW-1) >> (VPN client) >> >> I hope someone could help to advise what software is required on the >> FreeBSD box to NAT traversal work and where to get the HOWTO(s)? > > > Should be no problem. > > > > >> >> Thanks a lot. >> >> John Mok >> >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> > > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >