IP Addressing. Internet Protocol: Which version? There are currently two versions of the Internet Protocol in use for the Internet IPv4 Specified in 1980/81.
N ETWORK L AYER : I NTERNET P ROTOCOL (IP). 2 IP (Internet Protocol) is a Network Layer Protocol. IP’s current version is Version 4 (IPv4). It is specified.
Network Layer: Internet Protocol (IP)
IPv4 Addresses