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Find a Computer's Hardware Address

Equipment that can connect to the Internet or network have a piece of hardware called a Network Interface Card (NIC). Every NIC manufactured has a unique set of characters, referred to as its Hardware, Physical or MAC (Media Access Control) Address. The address is typically used to recognize the system on the network and give it a logical network ("IP") address, allowing it to connect. It is formatted as a 12-character, hexadecimal (0-9, A-F) number, and is assigned by the network card's manufacturer.

Instructions on this page will help you look up a computer's Hardware Address, which is required to register for the CUMC Wired Network. Only staff in a Certified IT Group will be able to submit the registration form, however you can use these instructions to help gather the information needed.

IMPORTANT: Be very careful to record and enter the address correctly. Every Hardware Address is unique world-wide. If the wrong address is submitted for registration it will not be able to connect, and registration must be re-submitted with the correct address.

Windows 7

  1. Click the Start button in the lower left corner of the computer screen.
  2. In the Search box, type cmd and hit the Enter key on your keyboard.
  3. A black command prompt window will appear. At the prompt type in ipconfig /all and hit Enter.
  4. Look for the Ethernet adapter Local Area Connection heading and note the twelve characters to the right of Physical Address (highlighted in purple below); you may need to use a scroll bar in the right of the window to find it.
  5. IMPORTANT: if the address is not submitted correctly, the computer will have to be re-registered using the correct one. Please contact us at 5-Help while viewing this information if you are not sure.

    Windows Ethernet Physical Address


Windows 8.1 and 10
  1. Use the computer's Search bar (in 8.1 swipe or click the upper right corner screen and select the magnifying glass; in 10 use the search box in the lower left taskbar) to find the
  2. Type command prompt into the search field and hit enter.
  3. A black command prompt window will appear. At the prompt type in getmac /v and hit enter.
  4. Look for the Physical Address listed under the Ethernet adapter Local Area Connection heading (highlighted in purple below).
  5. IMPORTANT: if the address is not submitted correctly, the computer will have to be re-registered using the correct one. Please contact us at 5-Help while viewing this information if you are not sure.

    Windows 8 Ethernet Physical Address


Macintosh OS X
  1. From the Apple menu/icon in the upper left, select System Preferences.
  2. Select the Network icon.
  3. Select Ethernet from the list on the left, then click the Advanced button in the lower right.
    If there is no list in the left pane of the Network window, select Built-in Ethernet from the Show: drop down menu near the top center of the window.
  4. Click the Hardware button from the top toolbar (or Ethernet if Hardware is not listed).
  5. Look for the set of twelve characters listed in the MAC Address (or Ethernet ID) field.
  6. IMPORTANT: if the address is not submitted correctly, the computer will have to be re-registered using the correct one. Please contact us at 5-Help while viewing this information if you are not sure.

    Macintosh Ethernet Hardware Address



For other types of systems please contact your Certified IT Group to get assistance with finding its hardware address. If you'd like to register a system that was recently purchased but has not yet arrived, the vendor may be able to supply the hardware address for you in advance.

More information on the wired network can be found in faculty and staff and student FAQs.



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Last updated 5/18/2017