ARP Explained | How Address Resolution Protocol (ARP) Works
What is ARP? Address resolution protocol resolves an IP address to a MAC address. Devices on a network use a MAC address to communicate with each other. To find a devices MAC address the ARP protocol is used.
Devices will use an ARP cache which is a lookup table that maps an IP address to a MAC address. This enables a device to quickly find a MAC address instead of sending a broadcast to the network to find a devices MAC address.
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