The Address Resolution Protocol is a request and reply protocol that runs encapsulated by the line protocol. It is communicated within the boundaries of a single network, never routed across internetwork nodes. This property places ARP into the Link Layer. It is encapsulated. REF: http://www.comptechdoc.org/independent/networking/guide/netarp.html.
| Field Name | Type | Description |
|---|---|---|
| Hardware_Addr_Type0..1 | IANAHardwareType |
Characterizes the type of hardware address specified in an ARP message. |
| Proto_Addr_Type0..1 | IANAEtherType |
ProtoAddrType characterizes the type of protocol address being mapped. For IPv4 addresses, value = 0x0800. |
| Hardware_Addr_Size0..1 | HexBinaryObjectPropertyType |
Harware_Addr_Size represents the byte size of the hardware address. For Ethernet or other IEEE 802 MAC addresses, the value is 6. |
| Proto_Addr_Size0..1 | HexBinaryObjectPropertyType |
Proto_Addr_Size represents the byte size of the protocol address. IPv4 addresses = 4. |
| Op_Type0..1 | ARPOpType |
Op_Type characterizes the type of operation. 1 = ARP request, 2=ARP reply, 3=RARP request, 4=RARP reply. |
| Sender_Hardware_Addr0..1 | AddressObjectType |
Sender_Hardware_Addr characterizes the sender's hardware address (e.g., MAC address). |
| Sender_Protocol_Addr0..1 | AddressObjectType |
Sender_Protocol_Addr characterizes the sender's IP address. |
| Recip_Hardware_Addr0..1 | AddressObjectType |
Recip_Sender_Hardware Addr characterizes the recipients' hardware address (e.g., MAC address). |
| Recip_Protocol_Addr0..1 | AddressObjectType |
Recip Protocol Addr characterizes the recipient's IP address. |