To get online with a faked MAC..what I'm most famous around here for...which only I until recently unearthed this little well kept secrete.
bt ~ # wlanconfig ath0 destroy
bt ~ # macchanger --mac 00:11:22:33:44:55 wifi0
Current MAC: 00:18:02:3a:67:14 (unknown)
Faked MAC: 00:11:22:33:44:55 (Cimsys Inc)
bt ~ # wlanconfig ath0 create wlandev wifi0 wlanmode managed (WHEN YOU TYPE THIS COMMAND,THE NEXT LINE ON YOUR SCREEN SAYS ath0 JUST LIKE THE LINE BELOW THIS ONE!...DO NOT TYPE ath0 IN A NEW COMMAND LINE!!!)
ath0
bt ~ # ifconfig ath0 up
bt ~ # iwconfig ath0 essid -=Xploitz=- key 0685483761
bt ~ # dhcpcd ath0