Internet protocol, documented in RFC 791, operates under the network layer in the TCP/IP stack offering a connectionless internetwork service. It provides features such as addressing, type-of-service specification, fragmentation and reassembly and security. | Internet protocol, documented in RFC 791, operates under the network layer in the TCP/IP stack offering a connectionless internetwork service. It provides features such as addressing, type-of-service specification, fragmentation and reassembly and security. |