Network Protocol: ARP

ARP – Network Layer

Address Resolution Protocol (ARP) is used in networking to resolves IP addresses to MAC address. It allows machines on a network to talk node to node using mac addresses resolved by IP addresses.

ARP Steps

  • Your system checks for a router or next hop in communication
  • If there is a router with an IP address it sends a ARP request to get the routers MAC address
  • The server responds with a packet with it’s IP address.
  • As your packet travels it changes it’s destination MAC address changes based on ARP’s

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