From owner-freebsd-questions@FreeBSD.ORG Thu Jul 24 12:11:31 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 219F637B404 for ; Thu, 24 Jul 2003 12:11:30 -0700 (PDT) Received: from main.gmane.org (main.gmane.org [80.91.224.249]) by mx1.FreeBSD.org (Postfix) with ESMTP id B6E7043F75 for ; Thu, 24 Jul 2003 12:11:29 -0700 (PDT) (envelope-from freebsd-questions@m.gmane.org) Received: from list by main.gmane.org with local (Exim 3.35 #1 (Debian)) id 19flTg-0005td-00 for ; Thu, 24 Jul 2003 21:10:12 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org Received: from news by main.gmane.org with local (Exim 3.35 #1 (Debian)) id 19flTb-0005sm-00 for ; Thu, 24 Jul 2003 21:10:07 +0200 From: othermark Date: Thu, 24 Jul 2003 19:10:06 +0000 (UTC) Lines: 20 Message-ID: References: <3F2000A1.9060500@401.cx> X-Complaints-To: usenet@main.gmane.org User-Agent: slrn/0.9.7.4 (FreeBSD) Sender: news Subject: Re: Etherbet interface redundancy X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Jul 2003 19:11:31 -0000 In article <3F2000A1.9060500@401.cx>, Roger 'Rocky' Vetterberg wrote: > Is there a way to accomplish interface redundancy on machines with dual > interface? You're right ng_onetomany uses all the interfaces unless one goes down which is not what you're talking about. FreeBSD does not provide this functionality by default, but there are many hardware vendors that do provide cards that offer interface redundancy w/o the need for special software interfaces. That being said, you could write something, even in shell script, to poll an interface, and when it's state changes to down, or the link is no longer active, bring up and configure a new interface. This would lose all the existing connections, but new connections would survive the failover. --- Mark atkin901 at NOSPAM yahoo dot com (!wired)?(coffee++):(wired);