Handbook of Information Security, Volume 1, Key Concepts, Infrastructure, Standards, and Protocols

Internet Architecture

Graham Knight, University College, London, United Kingdom

Introduction

Network Interconnection—The IP Service

Network Technologies and the Services They Provide

Interconnection via “Convergence”

The Internet Protocol—A Convergence Protocol

Hosts, IP Networks, and Routers

IP Addresses

The IP Datagram and the Service It Offers

Implementing the IP Service

Building on the IP Service

TCP—The Transmission Control Protocol

Ports—Identifying Applications and Processes

Other Internet Transport Protocols

Naming Internet Objects

Internet Applications

Making the IP Layer Work

IP Routers

IP Networks, Subnets, and Supernets

Routing Information

The Physical Structure of the Internet

Variations on the Theme—Firewalls, Tunnels, Virtual Private Networks, Network Address Translation, and Proxies

Multicast IP

IP Security

Mobile IP

Management in the IP Layer

The IPv6

Traffic Management in the Internet

INTSERV

DIFFSERV

Performance Issues

Conclusion

Glossary

Cross References

References

INTRODUCTION

The Internet is a rather loose assemblage of individual networks; there is little in the way of overall administration. The individual networks are owned by a huge number of independent operators. Some of these are major corporations with large, high-capacity networks; others are private individuals operating tiny networks of two or three computers their homes. Between them these networks employ just about every networking technology yet invented. The great strength of the Internet is ...