From owner-freebsd-net@FreeBSD.ORG Tue Dec 16 10:48:41 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 3E5531065672 for ; Tue, 16 Dec 2008 10:48:41 +0000 (UTC) (envelope-from nrml@att.net) Received: from smtp111.sbc.mail.mud.yahoo.com (smtp111.sbc.mail.mud.yahoo.com [68.142.198.210]) by mx1.freebsd.org (Postfix) with SMTP id E75D18FC17 for ; Tue, 16 Dec 2008 10:48:40 +0000 (UTC) (envelope-from nrml@att.net) Received: (qmail 92820 invoked from network); 16 Dec 2008 10:48:40 -0000 Received: from unknown (HELO Inbox) (nrml@70.7.127.185 with login) by smtp111.sbc.mail.mud.yahoo.com with SMTP; 16 Dec 2008 10:48:26 -0000 X-YMail-OSG: 8kjn..0VM1kIEdZBFrUrxzOUDhGjSzl8EcuK3Qe.ieym4OE6CLJW7soWESrGSthHlK8MYKJcwmzq6B70wA6G.1yw1nyTckqmI5dMy5xyQ9zMlr9PSZGXwcAkGvgHvYGO2.WwY9LntC9ow04jxIGt5ePi X-Yahoo-Newman-Property: ymail-3 MIME-Version: 1.0 content-class: From: Gabe Date: Tue, 16 Dec 2008 02:48:51 -0800 Importance: normal X-Priority: 3 To: Randy Bush Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Message-Id: <20081216104840.E75D18FC17@mx1.freebsd.org> 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 10:48:41 -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 Its just IP and nat and there is an IPSec tunnel in place. I need to know t= hat if the ISP goes out the DSL connection will be able to do certain thing= s, like say sending an email to a pager letting us know that the main conne= ction went down.=