MAC - Media Access Control

| Definition | Media Access Control technology provides unique identification and access control for computers on an Internet Protocol (IP) network. In wireless networking, MAC is the radio control protocol on the wireless network adapter. MAC works at the lower sublayer of the data link layer (Layer 2) of the OSI model.
→ MAC Address Tutorial
→ Enable MAC Address Filtering on a Wireless Router
→ Find IP and MAC Addresses on Windows XP | 2000