Go to Start and type cmd in the search box (for Vista and 7) or select Run and then type in cmd (for XP)
Type “ipconfig /all” and press enter.
Record the Physical Address from your wireless card (there will be multiple physical addresses–find the one associated with your wireless card, not your ethernet card)
Send an email with the code to the IT Director
Mac
Go to System Preferences and click on the Network preference button.
Click the Advanced button.
Make sure the Airport tab is selected and record the Airport ID as circled in the photo below (partially blocked out for security).