run a command on startup

[Jonathan Horne]

i have a box that my nic's eeprom got zapped last night.  WOL is a must for 
me, and as a last ditch, i finally have the card talking again if i set a mac 
address manually.  upon shutdown, apparently it remember the address i set, 
and answers to a WOL packet.  also, it appears to immediately forget the mac 
that was set when the computer starts, because when i get back to the login, 
the ifconfig shows the mac to be 00:00:00:00:00:00 again, and i have 
to 'ifconfig fxp0 ether [mad address]' after each boot.

where can i stick that command so its run during boot up, maybe preferable 
before the network configuration is loaded?

strangely enough, even when the mac address is 00's, i can still ping around 
my lan (i didnt think this was possible without a mac address)

thanks,
jonathan