D
Cisco RVS4000 Security Router with VPN Administrator Guide 166

Gateway-to-Gateway VPN Tunnel

Overview
This appendix explains how to configure an IPSec VPN tunnel between two VPN
routers by example. Two computers are used to test the liveliness of the tunnel.
These sections are included:
•Before You Begin, page166
•Configuration when the Remote Gateway Uses a Static IP Address,
page167
•Configuration when the Remote Gateway Uses a Dynamic IP Address,
page172
•Configuration When Both Gateways Use Dynamic IP Addresses,
page177
Before You Begin
You need this equipment:
•Two Windows desktop computers (each computer will be connected to a
VPN router)
•Two VPN routers (4-Port Gigabit Security Router with VPN, model number
RVS4000, and 10/100 8-Port VPN Router, model number RV082) that are
both connected to the Internet
Any VPN router can be deployed, such as the 10/100 16-, 8-, or 4-Port VPN Router
(model numbers RV016, RV082, or RV042); however, this example uses the
RV082.