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MAC addresses, or Media Access Control addresses, are unique identifiers assigned to each network interface on devices like computers and smartphones, acting like a permanent home address for those devices on a local network. Typically formatted as six pairs of hexadecimal numbers (e.g., 00:1A:2B:3C:4D:5E), these addresses ensure that no two devices have the same identifier. Unlike IP addresses, which can change based on the network, a MAC address is usually fixed and assigned by the manufacturer. Operating at the data link layer of networking, MAC addresses play a vital role in facilitating communication within local networks by allowing devices to send and receive data accurately, making them essential for efficient network traffic management.
MAC, or Media Access Control, uniquely identifies a device on the network. It is also known as physical address or Ethernet address. A MAC address is made up of 6-byte parts.