Whether it's setting up security within a router or some other reason, sometimes you must identify the "MAC Address" (or "physical address") of your computer.
Specifically, it's the unique ID given to the network card of your computer. Which means that you can have more than one MAC address...one for your ethernet card (where you plug in your network cable), and one for your wireless network card.
On Windows-based computers, do the following to find the mac addressof a computer:
- open up a 'DOS Prompt' by selecting Start, Run... and type 'command' (and press Enter).
- at the prompt, type 'ipconfig /all'
- read the display and look for the line labeled 'Physical Address'. Take note which network card it is for.
- The format of a MAC Address is: NN-NN-NN-NN-NN-NN, where 'N' represents any hexidecimal character (0-9, A-F).
<b>That's how you find a mac address for a network card!</b>
