The spoof command is slightly different if you are using 10.5/Leopard!
This is a quick and easy way to spoof your MAC address in OS X.
use this command to get your current ethernet MAC address:
ifconfig en0 | grep ether
use this command to spoof a new MAC address
10.5/Leopard:
sudo ifconfig en0 lladdr [new mac here]
10.4/Tiger:
sudo ifconfig en0 ether [new mac here]
…without the brackets.


jkroberts89
18. Sep, 2009
turn airport off and then do itis should work just fine
fizzmaverick
18. Sep, 2009
also does the airport have to turned off when you run the command in terminal?thnks again
fizzmaverick
18. Sep, 2009
hey tried it on 10.5.7 doesnt work
can you please tell me if you’ve been able to do it on 10.5.6 or 10.5.7
briandano
18. Sep, 2009
I am running os X 10.5.7Disconnect from any wireless networks by clicking on the join other network in the airport drop down. Type random characters in the network name field. Click connect. Click cancel while it tries to connect to your fake network. Do not turn airport off.To change to a mac address, enter this command in the terminal, replacing the mac address with one of your choosingsudo ifconfig en1 ether 00:bb:00:bb:00:bbThis will revert to the original address when you reboot.
fizzmaverick
18. Sep, 2009
thanks works perfectly!
briandano
18. Sep, 2009
Hmm… I have an intel core2 macbook with leopard and it still doesnt work… anyone know why? I blame steve.
fizzmaverick
18. Sep, 2009
what version OS do you have running?
briandano
18. Sep, 2009
I figured it out. You have to disconnect from the current network, but you should not turn airport off.
jkroberts89
18. Sep, 2009
does doing this change your IP Address. if not how do I change it
IXCZ
18. Sep, 2009
Look at that gay system bar!!! ha!ha!ha!