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.
