Does anyone know if the MAC address of a Cisco PIX 500 series firewall can be changed? I am running into conflicts setting up a couple of them for failover and apparently, the way to get them fixed and get all computers that pass through the firewall, to connect just fine.

I guess it can coz they can do it automagically for failover..

Google spat this link up.. http://www.cisco.com/warp/public/110/failover.html

Exactly, the problem is that i cannot force failover cause the other pix, the one that is up and running, is not configured nor upgraded. So, what i need to do is find the way to copy the working pixs mac address to the upgraded one, in a manner that the computers on all networks do not notice the swap (of course, we noticed that linux boxes do not have this problem).

The other thing is i cannot leave the firewall disconnected while i update it, cause i cannot leave no internet access, i guess all network admins know that we are responsible for keeping the net working no matter what

Let me know if i am not explaining myself correctly.