From owner-freebsd-net@FreeBSD.ORG Tue Dec 16 14:13:52 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 55B901065673 for ; Tue, 16 Dec 2008 14:13:52 +0000 (UTC) (envelope-from nrml@att.net) Received: from smtp114.sbc.mail.mud.yahoo.com (smtp114.sbc.mail.mud.yahoo.com [68.142.198.213]) by mx1.freebsd.org (Postfix) with SMTP id 0A09D8FC19 for ; Tue, 16 Dec 2008 14:13:51 +0000 (UTC) (envelope-from nrml@att.net) Received: (qmail 83512 invoked from network); 16 Dec 2008 14:13:51 -0000 Received: from unknown (HELO Inbox) (nrml@70.7.127.185 with login) by smtp114.sbc.mail.mud.yahoo.com with SMTP; 16 Dec 2008 14:13:50 -0000 X-YMail-OSG: FmsWuikVM1k9m9EsnDSFpHxDDYogOb2M1i_8TrCIXuE0UlDDTN18umaVWng63Z3Ygv.bSDUlf0cS6_ljXlKmRxC9eojCfSltVC6M0zIy0CsQBoNo6vnZ1jad3AKi.UVrmiIahTUaEfNgjDLfU6VnvPWlqQQVw5f7iy9weAm.qm0ldIMuEIi1kXQ- X-Yahoo-Newman-Property: ymail-3 MIME-Version: 1.0 content-class: From: Gabe Date: Tue, 16 Dec 2008 06:14:02 -0800 Importance: normal X-Priority: 3 To: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Message-Id: <20081216141352.0A09D8FC19@mx1.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 14:13:52 -0000 >Maybe try lagg(4) in Failover mode? On Tue, Dec 16, 2008 at 12:57 PM, Randy Bush 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. > Lagg wouldn't work on my setup because the dsl connection would be almost = completely independent. Unless you can provide an example. /gabe=