Netgear ProSafe SSL312 User Manual Page 81

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6-1
v2.0, May 2007
Chapter 6
Configuring the SSL VPN Tunnel Client and Port
Forwarding
This chapter describes the configuration for the SSL VPN Tunnel Client and for Port Forwarding.
When a remote user accesses the SSL VPN Concentrator from a PC that allows ActiveX content,
these two powerful features can be activated. For each of these features, the SSL312 installs a
small client program on the users PC that enables a more direct level of network access than is
possible from the browser alone.
This chapter includes:
Two Approaches for VPN
SSL VPN Client Configuration
Configuring Applications for Port Forwarding
Two Approaches for VPN
Two portal features allow direct VPN access to the corporate network. The SSL VPN Tunnel
Client allows full network access similar to an IPSec VPN connection. Port Forwarding allows
direct network access for selected client-server applications.
When a remote user accesses the SSL VPN Portal, one of the listed options is to Establish an SSL
VPN Tunnel. When this feature is selected, the SSL VPN Concentrator will install a small VPN
Tunnel Client program on the users PC that will allow the remote user to virtually join the
corporate network. The VPN Tunnel Client provides a PPP (point-to-point) connection between
the client and the SSL VPN Concentrator, and a virtual network interface is created on the users
PC. The SSL VPN Concentrator will assign the PC an IP address and DNS server IP addresses,
allowing the remote PC to access network resources in the same manner as if it were connected
directly to the corporate network.
Port Forwarding, like VPN Tunnel, is a web-based client that installs transparently and then
creates a virtual, encrypted tunnel to the remote network. However, Port Forwarding differs from
VPN Tunnel in several ways. For example, Port Forwarding:
Only supports TCP connections, not UDP or other IP protocols.
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