ARP

(Address Resolution Protocol)

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Hardware Address Type Protocol Address Type
H/w Addr. Len Prot. Addr Len Operation
Source Hardware Address
Source Hardware Addr (cont.) Source Protocol Address
Source Protocol Addr (cont.) Target Hardware Address
Target Hardware Address (cont.)
Target Protocol Address

 

ARP Parameters ( for Ethernet and IPv4 )

Hardware Address Type
1 Ethernet
6 IEEE 802 LAN
Protocol Address Type
2048 IPv4 (0x0800)
Hardware Address Length
6 for Ethenet/IEEE 802
Protocol Address Length
4 for IPv4
Operation
1 Request
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