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What is MAC address

In computer networking, a Media Access Control address (MAC address) or Ethernet Hardware Address (EHA) or hardware address or adapter address is a unique identifier attached to network adapters (NICs). It is a number that acts as a name for a particular network adapter, so, for example, the network cards (or built-in network adapters) in two different computers will have different names or MAC addresses, as would an Ethernet adapter and a wireless adapter in the same machine, and as would multiple network cards in a router.

However, it is possible to change the MAC address on most of today’s hardware, often referred to as MAC spoofing. Short for Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a separate MAC layer.

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