MAC address change under MacBook Pro MB133PL/A (Penryn) with Mac OSX 10.5.2

Hi,
Do you know how to change MAC address of ethernet LAN card (not Wi-Fi) under MacBook Pro MB133PL/A (Penryn) with Mac OSX 10.5.2 (Leopard) ?
Thanks,

I use the terminal.
sudo ifconfig en0 lladdr /enter valid mac address here without the slashes/
press return
enter superuser password
press return
This will change the regular wired ethernet port on you MBP. To change the wireless MAC you should replace the en0 with an en1 but if you have a Airport v1.0 card then it will not work. It might work if you have a v2.0 but people seem to have off an on success with that. Also you can attempt putting ether in place of lladdr if you still have issues that need troubleshooting.
I know there are some legit reasons to change the MAC address and many non-legit ones but lets just say for instance a friend of yours has a network or wireless and they forgot their password to control the settings on that network. Long ago when they made the network they limited access to it by binding it to certain MAC addresses namely theirs. Now they have given you permission to use the network but you can't because your computer does not have their mac address. They cannot make the network give you permission because they forgot their password so they give you thier MAC address and let you trick their network into thinking your computer is actually your friend's and then you are able to surf the internet. They won't just let you use their computer cause they need to write an essay offline for a few hours. This does not violate any terms of service, you got permission and unless there are some other extenuating circumstances this is a legit move. I assume this is the exact reason you want this information.

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