Every networking device has a MAC address, which stands for Media Access Control. The MAC address is a number used by network adapters to uniquely identify a device on a LAN. You can find your device's MAC address in a few steps.
Click "Start," "All Programs," "Accessories" and then "Command Prompt."
Type "ipconfig/all" without the quotes. Press "Enter."
Look at the numbers next to Physical Address. Those numbers are your MAC address.