From owner-freebsd-net@FreeBSD.ORG Tue Dec 16 10:16:11 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 3B6C9106564A for ; Tue, 16 Dec 2008 10:16:11 +0000 (UTC) (envelope-from randy@psg.com) Received: from ran.psg.com (ran.psg.com [IPv6:2001:418:1::36]) by mx1.freebsd.org (Postfix) with ESMTP id 209FD8FC17 for ; Tue, 16 Dec 2008 10:16:11 +0000 (UTC) (envelope-from randy@psg.com) Received: from 50.216.138.210.bn.2iij.net ([210.138.216.50] helo=rmac.psg.com) by ran.psg.com with esmtpsa (TLSv1:CAMELLIA256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1LCWyH-0001ht-TA; Tue, 16 Dec 2008 10:16:10 +0000 Message-ID: <49477FE8.4070903@psg.com> Date: Tue, 16 Dec 2008 19:16:08 +0900 From: Randy Bush User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b3pre) Gecko/20081204 Thunderbird/3.0b1 MIME-Version: 1.0 To: Gabe References: <20081216095615.A5AAE8FC16@mx1.freebsd.org> In-Reply-To: <20081216095615.A5AAE8FC16@mx1.freebsd.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: FreeBSD network failover 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: Tue, 16 Dec 2008 10:16:11 -0000 On 08.12.16 18:56, Gabe wrote: > I have a nat'd box which obviously has an internal and external ip > address. The box has a third interface which is configured to a DSL > connection. My goal is for that interface to be activated if the > external side fails so that outbound traffic still flows. Any of you > know of a way to accomplish this regardless of the type of failure. what routing protocols are involved? randy