What is a MAC address?

What is a MAC address?



A media access control address (MAC address) is a unique identifier for an Ethernet or network adapter over a network. It distinguishes different network interfaces and is used for a number of network technologies, particularly most IEEE 802 networks, including Ethernet. In the OSI model, MAC addresses occur in the Media Access Control Protocol sub-layer. A MAC address is also known as physical address, hardware address and burned-in address.

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