As you already know, MAC (Media Access Control) is a Layer 2 address assigned to each network card or interface (either wired or wireless). MAC address filtering involves administrating who will have access to the network based on the Layer 2 address of the devices. This ensures that unauthorized users cannot access network resources and it provides a granular control mechanism within the environment.
As traffic flows through a wireless network, associated MAC addresses are never encrypted so they can be easily discovered through a standard wireless LAN analysis. However, MAC address filtering must be used with caution because MAC . . .
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