Table of Contents:

Definition and Overview

1. Introduction

2. Benefits of ISP–Based Private Networks

3. Traditional WAN Network Architecture

4. Encryption-Based VPNs

5. Private Networking Using Frame-Relay PVCs

Self-Test

Glossary

PDF of this tutorial

ISDN
integrated services digital network

ISP
Internet service provider

IT
information technology

LEC
local exchange carrier

POP
point of presence

POTS
plain old telephone service

PVC
permanent virtual circuit

VPN
virtual private network

WAN
wide area network