Devices that access a network need to be identified. For this reason, many network technologies, like
Each device is assigned a MAC address by its manufacturer. The original
A MAC address is mainly used by a switch to direct the data to the right place almost like a home address. The IP is the road name and the MAC address is the door number
The universal administration of LAN MAC addresses began with the Xerox Corporation administering Block Identifiers (Block IDs) for Ethernet addresses.