Jacqueline Freeman - revised 08/2007
How do I find the MAC address (Physical Address) of my Ethernet adapter?
Assuming you use Windows XP (Home or Professional):- Click the Start button, select Run.
- Type CMD and click OK.
- A black Command prompt window will open. Type ipconfig /all and press Enter. (Note the space between ipconfig and /all.)
- Lots of information will be displayed, but what you need is in the Ethernet Adapter Local Area Connection section. Write down the Physical Address that looks like "0A-B1-C2-D3-E4-F5". This is the "MAC Address."
Your MAC Address (Physical Address) almost always starts with a zero. If you're writing down a number that does not start with "0" you've probably got the wrong number.
Once you have written down your MAC (Physical) Address click the
or type EXIT to close the window.
- Now you can go to http://dormlord.dowling.edu to register your computer for internet access.
TIPS
- In Windows Vista the Start menu items look a little different but you're still looking for the Run command. If you can't find it, select All Programs, Accessories and click Command Prompt.
- Make sure you have the right Ethernet adapter Local Area Connection. This is easiest during the "free-for-all" period at the beginning of each semester: a few lines below Physical Address find IP Address; if it starts with "149.72" you're probably looking at the right Connection. If IP Address is missing or starts with something else, look for Ethernet adapter Local Area Connection 2 or Ethernet adapter Local Area Connection 3, etc..
- Your MAC address NEVER looks like 00-00-00-00-00-00-00-E0 (way too many zeros, and too many numbers) or 44-44-45-44-44-44 (that's your modem). It ALWAYS has 6 pairs of 2 numbers, like 01-22-C3-D4-E5-F6.