From owner-freebsd-questions@FreeBSD.ORG Sun Feb 8 23:10:17 2004 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 949FF16A4CF for ; Sun, 8 Feb 2004 23:10:17 -0800 (PST) Received: from server.rucus.ru.ac.za (server.rucus.ru.ac.za [146.231.115.1]) by mx1.FreeBSD.org (Postfix) with SMTP id E6FBE43D1D for ; Sun, 8 Feb 2004 23:10:15 -0800 (PST) (envelope-from guy@rucus.ru.ac.za) Received: (qmail 9071 invoked from network); 9 Feb 2004 07:10:13 -0000 Received: from shell-em0.rucus.ru.ac.za (guy@10.0.0.1) by server-em0.rucus.ru.ac.za with QMQP; 9 Feb 2004 07:10:13 -0000 Date: Mon, 9 Feb 2004 09:10:13 +0200 From: Guy Antony Halse To: freebsd-questions@freebsd.org Message-ID: <20040209071013.GA70590@rucus.ru.ac.za> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Subject: changing the source address of an ICMP TTL exceeded message 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: Mon, 09 Feb 2004 07:10:17 -0000 Hi I've got two FreeBSD routers that act as redundant backups of each other using VRRP. Both these machines bind their own interfaces for administration purposes and the VRRP handles which one binds the gateway address. My problem is that, because the admin interface is bound before the gateway one, when I traceroute through the router I see the address of the admin interface rather than the gateway. So what I need to do is change the source address in the ICMP TTL exceeded messages that get sent out from the router to the gateway address. vrrpd lets me execute arbitary scripts when it becomes master/slave, so this shouldn't be a problem. The question is how do I actually change the source address? Thanks, - Guy -- Systems Manager, IT Division, Rhodes University, Grahamstown, South Africa Email: G.Halse@ru.ac.za Web: http://mombe.org/ IRC: rm-rf@irc.zanet.net *** ANSI Standard Disclaimer *** J.A.P.H