Linksys WRVS4400N Bedienungsanleitung PDF herunterladen (Seite 19)

Chapter 3: Planning Your Virtual Private Network (VPN)

What is a VPN?

Wireless-N Gigabit Security Router with VPN

to create a 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 C:

Configuring a Gateway-to-Gateway IPsec Tunnel.”

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, the businesswoman now has a secure

connection to the central office's network, as if she were physically connected.

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 the Linksys QuickVPN Software for Windows 2000 or

XP” and “Appendix C: Configuring a Gateway-to-Gateway IPsec Tunnel.”

Figure 3-1: VPN Router to VPN Router

Home Office

PC 2VPN RouterPC 1

Figure 3-2: Computer to VPN Router

Office

WRVS4400N

PC 2

Laptop running Linksys VPN Client Software

Off-site

WRVS4400N

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Linksys WRVS4400N Bedienungsanleitung Seite 19