From owner-freebsd-questions@FreeBSD.ORG Wed Aug 1 15:14:20 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2F6B016A417 for ; Wed, 1 Aug 2007 15:14:20 +0000 (UTC) (envelope-from a@jenisch.at) Received: from srvdmz13.oekb.co.at (srvdmz13.oekb.co.at [143.245.5.103]) by mx1.freebsd.org (Postfix) with ESMTP id 86C4E13C480 for ; Wed, 1 Aug 2007 15:14:19 +0000 (UTC) (envelope-from a@jenisch.at) X-SEF-Processed: 5_0_0_910__2007_08_01_17_14_18 X-SEF-7853D99-ADF1-478E-8894-213D316B8FFA: 1 Received: from msc01-n1 [143.245.2.187] by srvdmz13.oekb.co.at - SurfControl E-mail Filter (5.2.1); Wed, 01 Aug 2007 17:14:17 +0200 Received: from aurora.oekb.co.at ([143.245.9.16]) by MAIL1.oekb.co.at with Microsoft SMTPSVC(6.0.3790.3959); Wed, 1 Aug 2007 17:14:18 +0200 Received: from aurora.oekb.co.at (localhost.oekb.co.at [127.0.0.1]) by aurora.oekb.co.at (8.13.8/8.13.8) with ESMTP id l71FEH5M001985 for ; Wed, 1 Aug 2007 17:14:17 +0200 (CEST) (envelope-from a@jenisch.at) Received: (from ej@localhost) by aurora.oekb.co.at (8.13.8/8.13.8/Submit) id l71FEHF0001984 for freebsd-questions@freebsd.org; Wed, 1 Aug 2007 17:14:17 +0200 (CEST) (envelope-from a@jenisch.at) X-Authentication-Warning: aurora.oekb.co.at: ej set sender to a@jenisch.at using -f Date: Wed, 1 Aug 2007 17:14:17 +0200 From: Ewald Jenisch To: freebsd-questions@freebsd.org Message-ID: <20070801151417.GA1940@aurora.oekb.co.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.2i X-OriginalArrivalTime: 01 Aug 2007 15:14:18.0119 (UTC) FILETIME=[A13FA970:01C7D44E] Subject: LAN failover redundandcy? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Aug 2007 15:14:20 -0000 Hi, I'm looking for a way to configure failover redundancy for one of my servers. To be specific: The server in question has one IP-address but two LAN interfaces each of them connecting to a different switch. Traffic normally runs only through one of the two interfaces; the other is for redundandy only. In case the active LAN-interface goes down (e.g. because of a link and/or switch failure) the second LAN-interface should take over in the sense that traffic should run through the second interface (again the server has only one IP-address, so binding a different IP-address to the interface is not an option here) Is there any way how this can be configured under FreeBSD 6.2? Thanks much in advance for your help, -ewald