A MAC address, short for Media Access Control address, is a 12 digit hexadecimal number permanently assigned to a network interface card. Each company that supplies networking equipment is assigned a 6 digit OUI, or Organizationally Unique Identifier. Lucent, for example, is assigned the OUI 00022D, so wireless cards from Lucent begin with the numbers 00022D, or any other OUI assigned to them. You can find the MAC address of your device in several ways. Many manufacturers print the MAC address on the card itself.
- Open Command Prompt- you can open the start menu and type in Command Prompt in the search
- Command Prompt should look like this:
- Type in ipconfig –all and then press enter
- The Physical Address listed is the MAC address of the card. The IPv4 address is your IP address on the network.
Note: If you have multiple network cards in your machine (such as a wired card and a wireless card), you will need to be sure that you find the correct MAC address. In XP and above, wired cards are listed as "Local Area Connection" entries, and wireless cards are listed as "Wireless Network Connection" entries.
- For further assistance, contact the Help Desk at 972-883-2911 or assist@utdallas.edu.
- Click on the Apple icon >> System Preferences.
- Click Network.
- In the Network window, choose Ethernet on the left. The IP address will be shown in the window. To find the MAC address click Advanced…
- In the Advanced choose the Ethernet tab
- The Ethernet ID is the MAC address
- For further assistance, contact the Help Desk at 972-883-2911 or assist@utdallas.edu.
- Open a new shell prompt.
- Type the command ifconfig -a into the shell prompt. On Linux, the MAC address will be listed as the HWaddr. The IP address will be listed there as well.
