Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol (IP). It is as yet utilized to route most Internet traffic. It was presented in 1981. An IPv4 address is a 32-bit address. The IPv4 address comprises a network address and a host address. Inside the Internet, the network addresses are alloted by a central authority, the Network Information Center (NIC). The part of the IPv4 address is dictated by the class of address.