On Fri, 1 Nov 2002 12:17:53 -0500 Jonathan Cowherd wrote:

Is this for any NIC?

...

I think that the NICs must be able to support MAC assignment. There are a only a few cards that do, usually called server adapters. I think only CISCO supports it at the switch level, so if you start getting packet lose, it may be either not be turned on or not supported.

Try :

ifconfig eth1 down ifconfig eth1 hw ether DE:AD:BE:EF:BA:BE ifconfig eth1 up

From what I understand, the MAC address for each nic is programmed into

the card's eeprom, but the address is usually cached in memory somewhere, to have faster response times. The above method adjusts that cached memory location, which for all intents and purposes gets used for your mac address. So it works, but you may get kicked off a network if you try it. :-) I read somewhere, where a guy on a cable network accidently used the above trick to take over the dns server of the cable system. Needless to say, the cable system sysadmin wasn't too happy. -- use Perl; #powerful programmable prestidigitation