To find the MAC address of your Ethernet interface (wired connection), follow the same process as above and look for the entry labeled "Local Area Connection" during step 3. Mac OSX. Wireless. Once ...

Assign a fixed IP address to a device by MAC. This can be useful if you’re trying to establish access from outside your network to a service run on a computer or other device on your network.

This ought to throw a pretty significant wrench into some advertisers' and marketers' plans—if iOS 8 devices broadcast their Wi-Fi probe requests under constantly shifting unique MAC addresses ...