From owner-freebsd-net@FreeBSD.ORG Sun Jan 4 16:08:17 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0925C16A4CE for ; Sun, 4 Jan 2004 16:08:17 -0800 (PST) Received: from ganymede.hub.org (u46n208.hfx.eastlink.ca [24.222.46.208]) by mx1.FreeBSD.org (Postfix) with ESMTP id DE4A543D2D for ; Sun, 4 Jan 2004 16:08:15 -0800 (PST) (envelope-from scrappy@hub.org) Received: by ganymede.hub.org (Postfix, from userid 1000) id 1625F352C8; Sun, 4 Jan 2004 20:04:35 -0400 (AST) Received: from localhost (localhost [127.0.0.1]) by ganymede.hub.org (Postfix) with ESMTP id 0D4F13474E; Sun, 4 Jan 2004 20:04:35 -0400 (AST) Date: Sun, 4 Jan 2004 20:04:34 -0400 (AST) From: "Marc G. Fournier" To: Barney Wolff In-Reply-To: <20040104231252.GA71628@pit.databus.com> Message-ID: <20040104200204.V28998@ganymede.hub.org> References: <20040104162220.S28998@ganymede.hub.org> <20040104231252.GA71628@pit.databus.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-net@freebsd.org Subject: Re: Odd behaviour on em0 device in -stable ... I think ... X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Jan 2004 00:08:17 -0000 On Sun, 4 Jan 2004, Barney Wolff wrote: > On Sun, Jan 04, 2004 at 04:31:41PM -0400, Marc G. Fournier wrote: > > > > The problem is that I want to move an IP from one of the other servers > > (all with fxp interfaces) over to the 4th, with the em device ... I -alias > > the IP from the fxp device, and alias it over to the em device, and I can > > no longer access it remotely ... > > > > If I alias it onto any of hte other two fxp based servers, it works fine. > > Something, either the switch or the router, has a stale arp table entry. > It's a little curious that this ever works, without resetting whatever > it is. Perhaps the fxp's manage to send a gratuitous arp when taking > on a new alias. re: gratuitous arp ... I was wondering if the nics do anything like this, but, shouldn't be 'ping -S ' not "force" something? Like, I could see remote pings not being able to find their way, but sourcing one of the IP in question to go out, I would have thought it would have found its way ... Would the arp thing be nic based, or does the OS itself do it? ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664