D-Link DSR-500N User Manual download pdf (Page 131)

Chapter 7. SSL VPN

The router provides an intrinsic SSL VPN feature as an alternate to the s tandard IPsec

VPN. SSL VPN differs from IPs ec VPN mainly by removing the requirement of a pre -

ins talled VPN client on the remote host. Ins tead, users can s ecurely login through the

SSL Us er Portal us ing a s tandard web browser and receive acces s to configured

network res ources within the corporate LAN. The router s upports multiple concurrent

ses s ions to allow remote us ers to acces s the LAN over an encrypted link through a

cus tomizable us er portal interface, and each SSL VPN us er can be as s igned unique

privileges and network res ource acces s levels .

The remote us er can be provided different options for SSL s ervice through this router:

 VPN Tunnel: Th e remo t e u s er’s SSL en ab led b ro ws er is u s ed in p lace o f a VPN

client on the remote hos t to es tablish a s ecure VPN tunnel. A SSL VPN client

(Active-X or Java bas ed) is ins talled in the remote hos t to allow the client to join

the corporate LAN with p re-configured acces s /policy privileges . At this point a

v irt u a l netwo rk in t erfac e is created on the user’s hos t and this will be as s igned an

IP addres s and DNS s erver addres s from the router. Once es tablished, the hos t

machine can acces s allocated network res ources .

 Port Forwarding: A web-bas ed (ActiveX or Java) client is ins talled on the client

machine again. Note that Port Forwarding service only s upports TCP connections

between the remote us er and the router. The router adminis trator can define s pecific

services or applications that are available to remote port forwarding us ers ins tead

of acces s to the full LAN like the VPN tunnel.

 ActiveX clients are us ed when the remote user accesses the portal us ing the Internet

Explorer brows er. The Java client is u s ed for other brows ers like Mozilla Firefox,

Nets cape Navigator, Google Chrome, and Apple Safari.

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D-Link DSR-500N User Manual Page 131