From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andrew J. Meader" Subject: Re: Changing MAC Addresses Date: Mon, 16 Dec 2002 08:24:10 -0600 Sender: netfilter-admin@lists.netfilter.org Message-ID: <3DFDE20A.7040106@corp.lcom.net> References: <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: Sam Johnston , netfilter@lists.netfilter.org Sam, What does /sbin/ifconfig -a tell you? Andy Sam Johnston wrote: > 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