Table of Contents:

Definition and Overview

1. Introduction

2. VPN Technologies: Part I

3. VPN Technologies: Part II

4. VPN Technologies: Part III

5. VPN Technologies: Part IV

6. VPN Solutions

Self-Test

Glossary

PDF of this tutorial

Definition
An Internet-based virtual private network (VPN) uses the open, distributed infrastructure of the Internet to transmit data between corporate sites.

Overview
This tutorial addresses the basic architecture and enabling technologies of a VPN. The benefits and applications of VPNs are also explored. Finally, this tutorial discusses strategies for the deployment and implementation of VPNs.