The acronym MAC stands for Media Access Control and it is a unique number that identifies your network interface. In an interconnected computer network a so called ARP table relates your IP address to your network interface card’s MAC.
Despite the fact that physical MAC addresses are permanent, it is possible to change this address. In Linux proceed as follows:
ifconfig eth0 down
ifconfig eth0 hw ether 01:01:02:02:03:03
Tags: Tips and Tricks