For those of you who do not know what a MAC address is, it is the burned in address that every networking piece of equipment has that is unique. No two pieces of equipment should every have the same MAC address. There are many reasons someone might want to change the MAC address of the network card or wireless card. Maybe they are trying to connect to someone’s wireless network that only allows certain MAC addresses. You can also change your MAC address to test your own security settings, and even DHCP settings. So there are many reasons why you might want to change your MAC address.