SMC Networks SMC7904WBRA, SMC7904WBRB manual Virtual Private Network VPN

INTRODUCTION

•Virtual Private Network (VPN)

The Barricade supports three of the most commonly used VPN protocols — PPTP, L2TP, and IPSec. These protocols allow remote users to establish a secure connection to their corporate network. If your service provider supports VPNs, then these protocols can be used to create an authenticated and encrypted tunnel for passing secure data over the Internet (i.e., a traditionally shared data network). The VPN protocols supported by the Barricade are briefly described below.

•Point-to-Point Tunneling Protocol — Provides a secure tunnel for remote client access to a PPTP security gateway. PPTP includes provisions for call origination and flow control required by ISPs.

•L2TP merges the best features of PPTP and L2F — Like PPTP, L2TP requires that the ISP’s routers support the protocol.

•IP Security — Provides IP network-layer encryption. IPSec can support large encryption networks (such as the Internet) by using digital certificates for device authentication.

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