University of Oregon

How to Get a MAC Address

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The Media Access Control address (MAC address; no relation to Apple or Macintosh computers) is a unique identifier for computing devices on a network. A MAC address is somewhat like a serial number, except that a device usually has more than one MAC.

Every device that has an Internet connection must have a unique MAC Address. Modern computers will have two MAC Addresses: one wireless local area network (Wireless LAN) adapter and one Ethernet adapter.

MAC address is synonymous with Ethernet Hardware Address, Hardware Address, Physical Address, and Burned-in Address.


Get your MAC address: Windows 7

  1. Open the Start Menu and select Run...

  2. When the Run Window opens, type in CMD and click OK. This will open a Command Prompt window with administrative privileges.

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  3. In the Command Prompt, execute the command ipconfig with the all flag by typing "ipconfig /all" and pressing enter. This command will print all information about the Internet Protocol Configuration, including the Physical Address (MAC Address) of each device which is actively connected to the network. If the connection coming into the computer is over Ethernet, look for "Ethernet adapter Local Area Connection" and the associated Physical Address beneath it. If the connection is Wireless, look for "Wireless LAN adapter Wireless Network Connection" and the associated Physical Address beneath it.

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Get your MAC Address: OS X

  1. Click on the Airport Icon at the top of the screeen. When the drop-down menu appears, select Open Network Preferences...

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  2. In the Network window select the adapter that the computer is connected through to the network, Wi-Fi or Ethernet. Then click on Advanced.

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  3. Once the advanced adapter settings have opened, select Hardware.

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  4. At the top of the settings shown under the Hardware tab, the MAC Address is printed.

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