MAC Address - What is it? How to find it?

What is a MAC Address?

A MAC (Media Access Control) Address or Physical Address is a unique identifier attached to most forms of networking equipment such as a Wireless card or Ethernet card. All computers with network access have a MAC address, not just Macintosh computers.

Luther College uses MAC addresses to identify devices connected to the network, making it easier to troubleshoot or isolate problems.

Windows XP or Vista

  1. Click on Start and select Run.
  2. Type cmd and click OK.
  3. In the black command prompt that appears, type ipconfig /all
  4. Look for the Physical Address line. This is your MAC Address.
  5. Type exit to close the command prompt.
    • If you have multiple network cards (Wired or Wireless), there may be several Physical Address listed. Please note them both.
    • On Windows Vista, there will be IPv6 Addresses listed. These are quite long and not needed for Luther.

Windows 95/98

  1. Click on Start and select Run.
  2. Type winipcfg and click OK.
  3. Look for a box marked Adapter Address. This is your MAC Address.

Macintosh OS X

  1. Click on System Preferences (normally found on the Dock).
  2. Select Network.
  3. Wired/Ethernet Connection
    1. Select Show and choose Built-In Ethernet.
    2. Select the Ethernet tab.
    3. Look for the Ethernet ID. This is your MAC Address.
  4. Wireless/AirPort Connection
    1. Select Show and choose AirPort.
    2. Select the AirPort tab.
    3. Look for the AirPort ID. This is your MAC Address.

iPhone and iPod Touch

  1. Tap Settings
  2. Tap General
  3. Tap About
  4. Scroll down to Wi-Fi Address