As you know, the MAC (Media Access Control) address is the unique identifier of a network interface.
On any personal computer running Linux, it can be temporarily altered with the following commands:
# ifconfig eth0 down # ifconfig eth0 hw ether 02:01:02:03:04:08 # ifconfig eth0 up
I've read at O'Brien's blog a way to change it semi-permanently on your Raspberry Pi. Simply add the following line to the /boot/cmdline.txt file at the end:
Where we 'll replace xx: xx: xx: xx: xx: xx: xx with the new address MAC that we want.