what is the structure of an ip packet
IPv4 An IP packet consists of a header section and a data section.
Address Resolution Protocol The Address Resolution Protocol (ARP) is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given network layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite. ARP was defined in 1982 by RFCÂ 826,[1] which is Internet Standard STD 37.