MAC addresses are also useful when it comes to filtering on wireless networks. If they don’t match, then the packet is discarded.
If the addresses match, then the packet is processed. When a network adapter receives a packet, it checks to see if the packet’s destination MAC address matches its own. When packets are sent on the ethernet, they’re sent from a MAC address and to another MAC address.
The MAC address exists in addition to the IP address assigned by the local server or router and is essential for the functionality of network protocols like IP and TCP. While MAC address is the most common name, it is also sometimes called a physical address, a burned-in address, or a hardware address.Įvery individual piece of hardware on your local network has a MAC address typically assigned by the manufacturer of the device then stored on the hardware. A media access control address, or MAC address, is a unique identification code for each of your network interfaces.
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