Locating the MAC Address of Your Ethernet Card in Mac OS X v10.4/10.5 - Virginia Tech Knowledge Base [answers.vt.edu]

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Locating the MAC Address of Your Ethernet Card in Mac OS X v10.4/10.5

Time to Complete (in minutes): 5

Question:

How can I find out the Media Access Control (MAC) address of my Ethernet card in Mac OS X v10.4/10.5?

Answer:

In Mac OS X v10.4:
1. From the Apple menu, select System Preferences.
2. Click the Network icon.
3. In the Show drop-down list, select Built-in Ethernet.
4. Select the Ethernet tab. Your computer's MAC address will be listed next to Ethernet ID.
In Mac OS X v10.5:
1. From the Apple menu, select System Preferences.
2. Click the Network icon.
3. From the connections list on the left side of the window, select Ethernet.
4. Click Advanced button.
5. Select the Ethernet tab. Your computer's MAC address will be listed next to Ethernet ID.