NIC Hardware Address

[Joost <any.os.but.ms@tiscali.nl>]

Hi,

I want to 'change' the MAC-address of my NIC.
With Linux I can accomplish this using "ifconfig eth0 hw ...", so will 
"ifconfig rl0 hw ..." work for OpenBSD 3.1?
And if so, how can I get it to be set when the machine boots?

I hope someone can help me with this, cause my ISP checks my MAC-address 
before assigning an IP, and I want to use my OpenBSD box for making the 
connection.

Thanks in advance.

Regards,

Joost