From owner-freebsd-questions@FreeBSD.ORG Sat Feb 12 13:05:33 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4821C16A4CE for ; Sat, 12 Feb 2005 13:05:33 +0000 (GMT) Received: from lilzmailso01.liwest.at (lilzmailso01.liwest.at [212.33.55.23]) by mx1.FreeBSD.org (Postfix) with ESMTP id CF0FB43D31 for ; Sat, 12 Feb 2005 13:05:32 +0000 (GMT) (envelope-from dgw@liwest.at) Received: from cm248-169.liwest.at ([81.10.248.169]) by lilzmailso01.liwest.at with esmtp (Exim 4.24) id 1Czwxm-000272-LW; Sat, 12 Feb 2005 14:05:30 +0100 From: Daniela To: Alin-Adrian Anton Date: Sat, 12 Feb 2005 15:05:20 +0000 User-Agent: KMail/1.5.3 References: <200502112206.43267.dgw@liwest.at> <420D2348.4020408@spintech.ro> In-Reply-To: <420D2348.4020408@spintech.ro> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200502121505.20754.dgw@liwest.at> cc: questions@freebsd.org Subject: Re: How do I set the source address on a multi-homed host? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: dgw@liwest.at List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Feb 2005 13:05:33 -0000 On Friday 11 February 2005 21:27, Alin-Adrian Anton wrote: > Daniela wrote: > > I have two NICs (one inside and one outside interface) with NAT > > activated. The problem is that every time I establish a connection with a > > machine on my LAN, it uses the address of the outside interface as the > > source of the packets, which creates problems with my firewall. How do I > > tell my machine to use the other address whenever I connect to a local > > machine? > > > > Daniela > > Hi Daniela, > > Can you please be more specific? You mean this happens when you are > connecting from inside intranet to some other point inside intranet? Yes, this happens when I connect from my machine (which functions as a router with NAT to allow the other LAN machines connect to the internet) to another LAN machine. When the router establishes a connection to another point in the intranet, the source address used is my official IP, and not 10.0.0.1, which is the intranet IP of the router. In other words, I want the source address to be 10.0.0.1 on every outgoing connection where the destination is inside my intranet.