A MAC address, or Media Access Control address, is a unique identifier assigned to network interfaces for communication on a network. It is a hardware address that identifies each device on a local network.
Main points covered:

Function: Unique identification for network interfaces
Use: Essential for communications in the data link layer of the OSI model
Format: six pairs of hexadecimal digits (e.g. 00:1A:2B:3C:4D:5E)
Importance: Critical for network security and troubleshooting

Understanding MAC addresses helps manage network security and troubleshoot connection issues. Make sure your network devices have unique MAC addresses and check for unauthorized devices.

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