VPN
Introduction to VPNs
Cisco Small Business RV0xx Series Routers Administration Guide
123
9
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.
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).
1
99468
Site A
RV016
router
RV042
router
Site B
Inside
192.168.1.1/24
Outside
209.165.200.226/24
Outside
209.165.200.236/24
Inside
192.168.2.1/24
Personal
computers
Personal
computers
Printer
Printer
Internet