Cisco Systems RV042G, RV016 manual Vpn, Introduction to VPNs

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VPN

Use the VPN module to configure a Virtual Private Network (VPN) to allow secure access to your site from other locations. Refer to these topics:

•Introduction to VPNs, page 122

•Viewing the Summary Information for VPN, page 126

•Setting Up a Gateway to Gateway (Site to Site) VPN, page 130

•Setting Up a Remote Access Tunnel for VPN Clients (Client To Gateway), page 139

•Managing VPN Users and Certificates, page 147

•Setting Up VPN Passthrough, page 149

•Setting Up PPTP Server, page 150

Introduction to VPNs

A VPN is a connection between two endpoints in different networks to allow private data to be sent securely over a shared or public network, such as the Internet. This tunnel establishes a private network that can send data securely between these two locations or networks. A VPN tunnel uses industry-standard encryption and authentication techniques to secure the data sent between the two networks. It can be used to create secure networks linking a central office with remote offices, telecommuters, and/or professionals on the road.

There are several ways to create a VPN connection:

•Site to Site VPN (Gateway To Gateway), page123

•Remote Access (Client To Gateway), page 123

•Remote Access with Cisco QuickVPN, page125

•Remote Access with PPTP, page 125

Cisco Small Business RV0xx Series Routers Administration Guide 122