help,how can i change ipod touch wifi mac address??

[Cowboy]

i want to change my ipod touch 2g v 4.1 wifi mac address how can i do it?

[Fwb2700]

Launch terminal.

To check your current mac setting type:
ifconfig

You will see sth like this:
lo0 : ... - this is unimportant
en0: flags= 8863 <UP,BROADCAST, ... bla bla bla
and finally ether xx:xx:xx:xx:xx:xx

where: en0 is wifi's network interface and xx:xx:xx:xx:xx:xx is current mac address setting.

To set new mac address for your iphone's wifi card type:
ifconfig en0 lladdr yy:yy:yy:yy:yy:yy

where: yy:yy:yy:yy:yy:yy is new mac address.

After rebooting iphone mac address will return to factory setting.

[iTH1ZZ]

This doesn't work.. is there a way to spoof mac adress on iPod Touch 2G running 4.2.1 iOS? I'm jailbroken of course. Very important I figure this out. I'm looking everywhere for a working answer.