VPN

9

 

Introduction to VPNs

 

 

 

 

 

Site to Site VPN (Gateway To Gateway)

In a site-to-site or gateway-to-gateway VPN, a VPN router at one office connects to a VPN router at a remotely located office. Client devices can access network resources as if they were all at the same site. This model can be used for multiple users at a remote office.

In the following example, the main office (Site A) and a remote office (Site B) are connected by a VPN tunnel. Users at both sites have access to the network resources at both sites.

Outside Site A 209.165.200.226/24

RV016 router

Inside 192.168.1.1/24

Printer

Personal

computers

Internet

 

 

 

Outside

Site B

 

 

 

 

 

 

209.165.200.236/24

 

 

 

 

 

RV042

 

 

 

 

 

 

 

 

 

 

 

 

 

 

router

 

 

 

 

 

 

Inside

 

 

 

 

 

 

192.168.2.1/24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Printer

 

 

 

 

 

Personal

199468

computers

 

Configuration tasks:

Use the VPN > Gateway to Gateway page to configure the VPN tunnel. For instructions, see Setting Up a Gateway to Gateway (Site to Site) VPN, page 130. For more details and examples, see Appendix D, “Configuring a

Gateway-to-Gateway VPN Tunnel Between RV0xx Series Routers.”

Remote Access (Client To Gateway)

In a remote access or client-to-gateway VPN, a computer with VPN client software connects to a VPN router. For this scenario, you can install third-party VPN client software on the users’ computers. Alternatively, a VPN tunnel can be accessed from any computer with the built-in IPSec Security Manager (Windows 2000, Windows XP, and Windows 7).

Cisco Small Business RV0xx Series Routers Administration Guide

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Cisco Systems RV016, RV042G manual Site to Site VPN Gateway To Gateway, Remote Access Client To Gateway, Configuration tasks