How to change MAC Address in Backtrack 5r3

Changing MAC Address is very simple in Backtrack. Process involves very few simple commands. Here are the steps...

1. First Check you mac address with the command ifconfig 

2. Now disable eth0 interface with the command ifconfig eth0 down 

3. Now change mac address with the command macchanger -r eth0

4. And finally re enable the eth0 interface with the command ifconfig eth0 up

Thats it, Now you have changed your MAC Address. You can check it again with the command ifconfig to confirm the change.