Connected: An Internet Encyclopedia
RFC 791
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RFC:  791
Replaces:  RFC 760
IENs 128, 123, 111,
80, 54, 44, 41, 28, 26

INTERNET PROTOCOL

DARPA INTERNET PROGRAM

PROTOCOL SPECIFICATION

September 1981

prepared for

Defense Advanced Research Projects Agency
Information Processing Techniques Office
1400 Wilson Boulevard
Arlington, Virginia 22209

by

Information Sciences Institute
University of Southern California
4676 Admiralty Way
Marina del Rey, California 90291

TABLE OF CONTENTS


1.  INTRODUCTION

  1.1.  Motivation
  1.2.  Scope
  1.3.  Interfaces
  1.4.  Operation

2.  OVERVIEW

  2.1.  Relation to Other Protocols
  2.2.  Model of Operation
  2.3.  Function Description
  2.4.  Gateways

3.  SPECIFICATION

  3.1.  Internet Header Format
  3.2.  Discussion
  3.3.  Interfaces

APPENDIX A:  Examples & Scenarios
APPENDIX B:  Data Transmission Order

GLOSSARY

REFERENCES

Original text document

Preface

This document specifies the DoD Standard Internet Protocol. This document is based on six earlier editions of the ARPA Internet Protocol Specification, and the present text draws heavily from them. There have been many contributors to this work both in terms of concepts and in terms of text. This edition revises aspects of addressing, error handling, option codes, and the security, precedence, compartments, and handling restriction features of the internet protocol.

Jon Postel
Editor


Connected: An Internet Encyclopedia
RFC 791