From owner-freebsd-net@FreeBSD.ORG Fri Apr 18 13:25:47 2008 Return-Path: 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 56FF0106564A for ; Fri, 18 Apr 2008 13:25:47 +0000 (UTC) (envelope-from iaccounts@ibctech.ca) Received: from pearl.ibctech.ca (pearl.ibctech.ca [208.70.104.210]) by mx1.freebsd.org (Postfix) with ESMTP id DCF018FC0A for ; Fri, 18 Apr 2008 13:25:46 +0000 (UTC) (envelope-from iaccounts@ibctech.ca) Received: (qmail 8784 invoked by uid 1002); 18 Apr 2008 13:25:42 -0000 Received: from iaccounts@ibctech.ca by pearl.ibctech.ca by uid 89 with qmail-scanner-1.22 (spamassassin: 2.64. Clear:RC:1(208.70.104.100):. Processed in 0.129558 secs); 18 Apr 2008 13:25:42 -0000 Received: from unknown (HELO ?192.168.30.110?) (steve@ibctech.ca@208.70.104.100) by pearl.ibctech.ca with (DHE-RSA-AES256-SHA encrypted) SMTP; 18 Apr 2008 13:25:41 -0000 Message-ID: <4808A15E.4030007@ibctech.ca> Date: Fri, 18 Apr 2008 09:25:50 -0400 From: Steve Bertrand User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: freebsd-net@freebsd.org X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: IPIP tunnel behind NAT X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Apr 2008 13:25:47 -0000 Hi everyone, I'm trying to configure a GIF IPIP tunnel from a FreeBSD box to a Cisco router in order to route IPv6 blocks to a remote location. However, I can't find good documentation to find out whether this will work in behind a NAT device. The FreeBSD box has a private IP, NAT'd 1:1. The Cisco is across the 'net and is in the public network. Will this tunnel setup work? If so, how? Will I have to move the FreeBSD box outside of NAT and give it a public IP? Regards, Steve