Unable to change MAC address

[xosiris]

Hi there,

I would like to change my MAC address. However whatever tutorial or manual I follow the ether net address will only change under ifconfig, but when I try to connect to any network with a changed MAC address I will get a connection timeout.

I use the following commands to change the MAC address of my WiFi connection on an old macbook pro with lion:
(See also https://github.com/feross/SpoofMAC)

Preparing the interface

sudo networksetup -setairportpower en1 on
sudo airport -z

Changing the MAC

sudo ifconfig en1 ether xx:xx:xx:xx:xx:xx
sudo networksetup -detectnewhardware

Checking the change

ifconfig en1 | grep ether
sudo networksetup -detectnewhardware

 

[meme1255]

I'm using

sudo airport -z
sudo ifconfig en1 ether NewMAC

And then try connection to WiFi
repeat until it starts working (usually works immediately, though)
Optional check:

ifconfig en1 | grep ether