Internet Protocol Request For Comments (RFC's)

Request For Comments (RFC’s) >

The Internet Protocol enables each computer on the Internet to communicate with other computers through the exchange of packets of digital information. There are also eight higher level protocols that run on top of the Internet Protocol, and provide additional functionality for different applications. These nine fundamental Internet protocols are listed below, together with the RFC’s that describe them.

Protocol

Acronym

Purpose

RFC

Internet Protocol

IP

Physical network

RFC-791

Internet Control Message Protocol

ICMP

Status messaging

RFC-792

Transmission Control Protocol

TCP

Guaranteed delivery

RFC-793

User Datagram Protocol

UDP

Coordination, Audio

RFC-768

Telnet Protocol

TELNET

Remote login

RFC-764

File Transfer Protocol

FTP

Network utility

RFC-765

Simple Mail Transfer Protocol

SMTP

Email

RFC-788

Network News Transfer Protocol

NNTP

Usenet

RFC-977

Hypertext Transfer Protocol

HTTP

Web

RFC-2068