Netgear FVS336G-300NAS Specifications download pdf (Page 429)

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Set Up Virtual Private Networking with SSL Connections

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ProSAFE Dual WAN Gigabit WAN SSL VPN Firewall FVS336Gv3

SSL VPN Portals Overview

The following sections provide concept information about the SSL VPN portal:

• SSL VPN Capabilities

• SSL Tunnels

• SSL Port Forwarding

• Build and Access an SSL Portal

SSL VPN Capabilities

The VPN firewall integrates a hardware-based SSL VPN engine that can provide mobile

users remote access to their corporate resources. With SSL VPN, remote users do not need

to install a VPN client on their computers. Using the familiar Secure Sockets Layer (SSL)

protocol, which is common for e-commerce transactions, the VPN firewall can authenticate

itself to an SSL-enabled client, such as a standard web browser.

When the authentication and encryption negotiation are successful, the server and client

establish an encrypted connection. With support for up to five dedicated SSL VPN tunnels,

the VPN firewall allows users to easily access the remote network from virtually any available

platform. You can customize a secure user portal and assign a level of SSL service.

The VPN firewall’s SSL VPN portal can provide two levels of SSL service to the remote user:

SSL VPN tunnel and SSL port forwarding. The SSL VPN portal can present the remote user

with one or both of these SSL service levels, depending on how you set up the configuration.

SSL Tunnels

With an SSL VPN tunnel, the VPN firewall provides full network connectivity of a VPN tunnel

using the remote user’s browser. The SSL capability of the user’s browser provides

authentication and encryption, establishing a secure connection to the VPN firewall. Upon

successful connection, an ActiveX-based SSL VPN client is downloaded to the remote

computer to allow the remote user to virtually join the corporate network.

The SSL VPN client provides a point-to-point (PPP) connection between the client and the

VPN firewall, and a virtual network interface is created on the user’s computer. The VPN

firewall assigns the computer an IP address and DNS server IP addresses, allowing the

remote computer to access network resources in the same manner as if it were connected

directly to the corporate network, subject to any policy restrictions that you configure.

SSL Port Forwarding

Like an SSL VPN tunnel, SSL port forwarding is a web-based client that is installed

transparently and then creates a virtual, encrypted tunnel to the remote network. However,

port forwarding differs from an SSL VPN tunnel in several ways:

• Port forwarding supports only TCP connections, not UDP connections or connections

using other IP protocols.

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