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Finding Your Ethernet Hardware Address: Mac OS X (pre-10.3)

To determine the EHA of your computer running Mac OS X, please follow the steps below. If you need further assistance, please request help from a Student Tech.

1. Click on the in the top left corner. Choose System Preferences from the menu.
   
2. The System Preferences window will appear. Click on Network.
   
3. Select your Ethernet card in the dropdown box next to Show:. The EHA of the selected Ethernet card is listed after Ethernet Address. Your wired Ethernet card will be listed under Built-in Ethernet, your wireless card will be listed under Airport. If you cannot select your card, please request help from a Student Tech.
   
4. Write down your Ethernet Hardware Addresses exactly as you see it on your screen. EHAs use only hexadecimal characters: they only contain the letters A through F and the numerals 0 through 9.