Mac Address of your cable connection (ethernet) : how to find it

A MAC (Media Access Control) address is a unique ID assigned to every internet-connected interface on a computere that allows it to be identified when connected to a network.


  1. Open System Preferences.
  2. Select Network.
  3. Then you need to select the network interface you want to use a cable with. One way to identify it is to connect a live network wall port to your computer and then it should be shown as active (green dot).
  4. The click on Advanced and then Hardware and the Mac Address should be shown. An example: osx Mac screenshot of mac address


  1. Click on the Start menu in the bottom-left corner of your computer. Select Run or type cmd into the search bar at the bottom of the Start menu to bring up the command prompt.
  2. Type ipconfig /all (note the space between the g and /).
  3. The MAC address is listed as a series of 12 digits, listed as the Physical Address (00:1A:C2:7B:00:47, for example). Each network adapter (wireless, Ethernet, etc.) has a separate MAC address. And we want the Ethernet one


From a terminal window at the command run this command ip addr show. Probably the eth0 Mac addres is the one to send to us.

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