From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sam Johnston Subject: Changing MAC Addresses Date: Sat, 07 Dec 2002 14:37:01 +1100 Sender: netfilter-admin@lists.netfilter.org Message-ID: <3DF16CDD.5000400@aos.net.au> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: netfilter@lists.netfilter.org Afternoon all, I'm not sure if this is the best forum for this question as it is not necessarily directly related to Netfilter, but I can't think of anywhere else I might find anyone capable of answering it, so here goes. I have a bunch of xboxes running linux which all have the same MAC address: 00:00:00:00:00:00. This causes obvious problems when more than 1 machine is on any one segment. I'm led to believe I can work around the problem by putting something like: /sbin/ifconfig eth0 hw ether 00:50:f2:ab:cd:ef up fairly early in the boot process (specifically, I've chosen the pre-up directive in /etc/network/interfaces as they're running Debian). When I do this I'm able to see the MAC<->IP mapping in the ARP table of another machine, but it doesn't respond. I figure that something somewhere is remembering the old MAC address and dropping anything that doesn't match, although I don't know enough about low level networking in linux to be sure. Any suggestions would be appreciated. Sam