From owner-freebsd-net@FreeBSD.ORG Thu Nov 6 23:59:48 2003 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 E06FD16A4CE for ; Thu, 6 Nov 2003 23:59:48 -0800 (PST) Received: from mizar.origin-it.net (mizar.origin-it.net [194.8.96.234]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B65243FBF for ; Thu, 6 Nov 2003 23:59:47 -0800 (PST) (envelope-from helge.oldach@atosorigin.com) Received: from matar.hbg.de.int.atosorigin.com (dehsfw3e.origin-it.net [194.8.96.68])hA77xjUQ070887 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 7 Nov 2003 08:59:45 +0100 (CET) (envelope-from helge.oldach@atosorigin.com) Received: from galaxy.hbg.de.ao-srv.com (galaxy.hbg.de.ao-srv.com [161.89.20.4])ESMTP id hA77xj35068656; Fri, 7 Nov 2003 08:59:45 +0100 (CET) (envelope-from helge.oldach@atosorigin.com) Received: (from hmo@localhost) by galaxy.hbg.de.ao-srv.com (8.9.3p2/8.9.3/hmo30mar03) id IAA19949; Fri, 7 Nov 2003 08:59:38 +0100 (MET) Message-Id: <200311070759.IAA19949@galaxy.hbg.de.ao-srv.com> In-Reply-To: <022501c3a491$e46bf780$6e2a6ba5@lc.ca.gov> from Drew Tomlinson at "Nov 6, 2003 7:14:47 pm" To: drew@mykitchentable.net (Drew Tomlinson) Date: Fri, 7 Nov 2003 08:59:38 +0100 (MET) From: Helge Oldach X-Address: Atos Origin GmbH, Friesenstraße 13, D-20097 Hamburg, Germany X-Phone: +49 40 7886 7464, Fax: +49 40 7886 9464, Mobile: +49 160 4782517 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit cc: freebsd-net@freebsd.org Subject: Re: Routing With Two ISPs? 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: Fri, 07 Nov 2003 07:59:49 -0000 Drew Tomlinson: >I have a 4.8 box serving as a gateway with two connections to the >Internet. Is there some way to set the box up so that packets are >routed out through the same interface from which they arrived? For >example, if a connection is initiated on port 80 from a packet arriving >on one interface, is there a way to make the outgoing packets from my >web server use that same interface as a gateway instead of the default >interface? Unfortunately not. While your application (multi-homing, aka "strong ES" model of RFC 1122) would appear simpler, a general solution would target at true policy-based routing. The latest information I have seen is http://www.mail-archive.com/freebsd-net@freebsd.org/msg07737.html. Helge