From owner-freebsd-net@FreeBSD.ORG Tue Dec 16 09:56:15 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 F0562106564A for ; Tue, 16 Dec 2008 09:56:15 +0000 (UTC) (envelope-from nrml@att.net) Received: from smtp106.sbc.mail.mud.yahoo.com (smtp106.sbc.mail.mud.yahoo.com [68.142.198.205]) by mx1.freebsd.org (Postfix) with SMTP id A5AAE8FC16 for ; Tue, 16 Dec 2008 09:56:15 +0000 (UTC) (envelope-from nrml@att.net) Received: (qmail 99294 invoked from network); 16 Dec 2008 09:56:15 -0000 Received: from unknown (HELO Inbox) (nrml@70.7.127.185 with login) by smtp106.sbc.mail.mud.yahoo.com with SMTP; 16 Dec 2008 09:56:14 -0000 X-YMail-OSG: Z5TCf_8VM1nhlY_EfYZkou11w875iM.TnIN_RVY5qxOEsi4V3BrDYBVHof7a3JH_LRQd.Do2Iij1UduJVxq0NdYf_9biyPJc4nuXvwCFdwic8WK_KJL51X47IvPri3dKF6A9KrKnboh_z7hW2jgIaohN X-Yahoo-Newman-Property: ymail-3 MIME-Version: 1.0 content-class: From: Gabe Date: Tue, 16 Dec 2008 01:56:27 -0800 Importance: normal X-Priority: 3 To: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Message-Id: <20081216095615.A5AAE8FC16@mx1.freebsd.org> Subject: 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 09:56:16 -0000 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 th= at outbound traffic still flows. Any of you know of a way to accomplish thi= s regardless of the type of failure. I looked into CARP but I am not convinced that this would do what I need it= to. /gabe=