From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030262AbWJYSYz (ORCPT ); Wed, 25 Oct 2006 14:24:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030418AbWJYSYz (ORCPT ); Wed, 25 Oct 2006 14:24:55 -0400 Received: from anchor-post-34.mail.demon.net ([194.217.242.92]:530 "EHLO anchor-post-34.mail.demon.net") by vger.kernel.org with ESMTP id S1030262AbWJYSYy (ORCPT ); Wed, 25 Oct 2006 14:24:54 -0400 Message-ID: <453FABF5.6080209@superbug.co.uk> Date: Wed, 25 Oct 2006 19:24:53 +0100 From: James Courtier-Dutton User-Agent: Thunderbird 1.5.0.7 (X11/20061020) MIME-Version: 1.0 To: Lehner franz CC: linux-kernel@vger.kernel.org Subject: Re: BUG: Network: Duplicate MAC adress response in multihomed system : All Kernels References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Lehner franz wrote: > Maybe it is a setting, i have searched everywhere, but this is really > mysterious > > take a linux, configure this kind > > eth0: 192.168.10.200 / 255.255.255.0 > eth1: 192.168.10.201 / 255.255.255.0 > > Both Interfaces are "real ethernet cards" and are connected to same switch > > if you take now a 3'rd machine, and do a > > arping -c 1 192.168.10.200 >> 60 bytes from 00:0c:29:bc:96:fe ( 192.168.10.200): index=0 >> time=645.876 usec >> 60 bytes from 00:0c:29:bc:96:f4 ( 192.168.10.200): index=1 time=1.472 >> msec > > arping -c 1 192.168.10.201 >> 60 bytes from 00:0c:29:bc:96:fe (192.168.10.201 ): index=0 >> time=833.988 usec >> 60 bytes from 00:0c:29:bc:96:f4 (192.168.10.201): index=1 time=1.211 msec > This behavior is correct. You should not set up a network in the way you have. Look at "bonding" for a better way to set up a system with multiple physical interfaces on the same subnetwork. James