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