# ARP

ARP, or Address Resolution Protocol, is used to map an IP address to a physical MAC address on a local network. When a device wants to communicate with another device on the same network, it uses ARP to discover which MAC address corresponds to a known IP address. The result is stored temporarily in an ARP cache to speed up future lookups.

Visit the following resources to learn more:

- [@article@Address Resolution Protocol (ARP): Resolving Network Address Conflicts](https://www.fortinet.com/resources/cyberglossary/what-is-arp)
- [@video@ARP Explained - Address Resolution Protocol](https://www.youtube.com/watch?v=cn8Zxh9bPio)