How to change MAC Address in Backtrack !!!

1. Open Terminal

2. Type: #ifconfig eth0 down

Note: eth0 can be replaced with any other local interface

3. Change your MAC address using the macchanger application:

#macchanger –mac 00:11:22:33:44:55 eth0

Alternatively use:

#macchanger -r eth0

This will set a ‘random’ MAC address on your interface.

4. Re-enable your network interface by typing:

#ifconfig eth0 up

5. Confirm the MAC address is in place by using: #ifconfig eth0 | grep HWaddr