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Find MAC Address:

Mac OS X

The following instructions will show you how to find the MAC Address on your Mac running OS X version 10.5.

Open System Preferences

Open the Apple menu by clicking the leftmost item on the menu bar (it looks like an apple). Then click System Preferences....

Open System Preferences

Open Network

In the System Preferences window click Network. If Network is not visible click Show All first.

System Preferences

Advanced Network

In the Network window make sure Ethernet is selected and then click the Advanced... button.

Network

Ethernet ID

In the Advanced Netowork page, click the Ethernet tab. Your MAC Address is found beside Ethernet ID:.

Ethernet