ARP

ARP (address resolution protocol) is used to translate protocol addresses to hardware interface addresses(mac).

ARP Header

• Hardware type: 16 bits.

• Protocol type: 16 bits.

• Hardware address length (Length of the hardware address in bytes.): 8 bits.

• Protocol address length (Length of the protocol address in bytes.): 8 bits.

• Opcode: 16 bits.

• Source hardware address: Variable length.

• Source protocol (mac) address: Variable length.

• Destination hardware (mac) address.: Variable length.

• Destination protocol address: Variable length.