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Cisco WRVS4400N Wireless-N Gigabit Security Router with VPN Administration Guide 203

Configuring a Gateway-to-Gateway IPSec

Tunnel

This appendix describes configuring IPSec with a computer that is using Windows
2000 or Windows XP. It includes the following sections:
•“Introduction” on page 203
•“Environment” on page 204

Introduction

This appendix explains how to configure an IPSec VPN tunnel between two VPN
routers by example. In this example, two personal computers test the liveliness of
the tunnel.
You can think of VPN Router1, the Internet, and VPN Router2 as a big virtual router
that connects PC1 on LAN1 and PC2 on LAN2.