Cisco RVS4000 - Gigabit Security Router User's Guide download pdf (Page 12)

Planning Your Virtual Private Network (VPN)

4-Port Gigabit Security Router with VPN

Chapter 3

VPN tunnel using IPSec (refer to “Appendix C: Configuring

IPSec between a Windows 2000 or XP PC and the Router”).

Other versions of Microsoft operating systems require

additional, third-party VPN client software applications

that support IPSec to be installed.

VPN Router to VPN Router

An example of a VPN Router-to-VPN Router VPN would

be as follows. At home, a telecommuter uses his VPN

Router for his always-on Internet connection. His router

is configured with his office’s VPN settings. When he

connects to his office’s router, the two routers create a VPN

tunnel, encrypting and decrypting data. As VPNs utilize

the Internet, distance is not a factor. Using the VPN, the

telecommuter now has a secure connection to the central

office’s network, as if he were physically connected. For

more information, refer to “Appendix D: Configuring a

Gateway-to-Gateway IPSec Tunnel.”

VPN Router to VPN Router

Computer (using the Linksys VPN client software)

to VPN Router

The following is an example of a computer-to-VPN Router

VPN. In her hotel room, a traveling businesswoman dials

up her ISP. Her notebook computer has the Linksys VPN

client software, which is configured with her office’s IP

address. She accesses the Linksys VPN client software and

connects to the VPN Router at the central office. As VPNs

utilize the Internet, distance is not a factor. Using the VPN,

she now has a secure connection to the central office’s

network, as if she were physically connected.

Computer to VPN Router

For additional information and instructions about

creating your own VPN, please visit Linksys’s website

at www.linksys.com. You can also refer to “Appendix B:

Using Linksys QuickVPN for Windows 2000, XP, or Vista”,

“Appendix C: Configuring IPSec between a Windows 2000

or XP PC and the Router,” and “Appendix D: Configuring a

Gateway-to-Gateway IPSec Tunnel.”

Home Office

PC 1 RVS4000 VPN Router PC 2

Office

VPN Router PC 2

Off-Site

Laptop running

Linksys VPN Client Software

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