The fields of the packet format of ARP are as follows:
-Hardware type: It is a 16-bit field . Each LAN has been assigned an integer based on its type. For example, Ethernet is given the type 1.
-Protocol type: This is a 16-bit field defining the protocol. For example, the value of this field for IPv4 protocol is 0800.
-Hardware length: This is an 8-bit field defining the length of the physical address in bytes. For example, for Ethernet the value is 6.
-Protocol length: This is an 8-bit field defining the length of the logical address in bytes. For example, for IPv4 protocol the value is 4.
-Operation: This is a 16-bitfield defining the type of packet. Two packet types are defined: ARP request (1), ARP reply (2).
-Sender hardware address: This is a variable-length field defining the physical address of the sender. For example, for Ethernet this field is 6 bytes long.
-Sender protocol address: This is a variable-length field defining the logical (for example, IP) address of the sender. For the IP protocol, this field is 4 bytes long.
-Target hardware address: This is a variable-length field defining the physical address of the target. For example, for Ethernet this field is 6 bytes long.
-Target protocol address: This is a variable-length field defining the logical (for example, IP) address of the target. For IPv4 protocol, this field is 4 bytes long.   _{Your Comment}