What is Internet Protocol?
The Internet Protocol is the principal communications protocol used in exchanging data packets across an internetwork using the Internet Protocol Suite.
Responsible in routing packets across network boundaries. And it is also the primary protocol that establishes the Internet.
IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering datagrams from the source host to the destination host solely based on their address also known as IP Address. For this purpose, IP defines addressing methods and structures for datagram encapsulation or packet encapsulation.
Historically, IP was the connectionless datagram service in the original Transmission Control Program introduced by Vint Cerf and Bob Kahn in 1974, the other being the connection-oriented Transmission Control Protocol (TCP). The Internet Protocol Suite is therefore often referred to as TCP/IP.
The first major version of IP, now referred to as Internet Protocol Version 4 (IPv4) is the widely used protocol of the Internet, although the successor, Internet Protocol Version 6 (IPv6) is in active, growing deployment worldwide.