How to find your MAC address in Mac and Window

I use MAC address for my DHCP IP settings. So I always need to find MAC address from the new machine that plug into my network. Without the MAC address, user will not be assigned any IP address. And this helps to enforce certain level of security. Ya i know it’s not the best solution, but at least it block some newbie :p

To find your MAC address on Mac OS X, follow the steps below:-


  • Click on Apple -> “About this Mac” -> “More Info”
  • Click on “Network” at the left navigation and you will see your MAC address as the image below:-

    * Image above showing the Air Port MAC Address in Mac OS X

    * Image above showing the LAN Port MAC Address in Mac OS X

To find your MAC address on Windows XP/2000/Vista/7 , follow the steps below:-

  • Start -> Run -> type “cmd” and enter
  • Enter the command below:
    ipconfig /all
  • The “Physical Address” is your MAC address.

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