D-Link DSA-3600, User Manual

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Chapter 4. Web Interface Configuration
112
4.4.8 VPN
V
irtual
P
rivate
N
etwork (VPN) is designed to increase the security of information transferred over the Internet. VPN
can work with wired or wireless networks and dial-up connections over POPS. It can create a private encrypted
tunnel from the end user's computer, through the local wireless network and the Internet, to corporate servers and
databases. There are 3 types of VPN connection supported by this system:
Local
,
Remote
, and
Site-to-Site
.
Windows Vista clients are able to use VPN from local and remote. Windows Vista’s local VPN is implemented via
PPTP in this release and named as “Local PPTP VPN” because Windows Vista’s IPSec tunnel mode behaves
differently from Windows XP and 2000. Local PPTP VPN uses the configuration of Remote VPN. When Remote
VPN is disabled, Windows Vista’s clients can only use non-IPSec login even though this user is configured as Local
VPN required.
ƒ
Local VPN
Local VPN allows a user to create the VPN tunnel between the user's device and DSA-3600, to encrypt the data
transmission. In addition, only when this function is enabled (Active) here do users of the entire system are able
to use Local VPN. Local VPN users can also be isolated from each other when VPN Client Isolation is enabled.
For more information on Local VPN, please refer to
Appendix H. Local VPN.
ƒ
Remote VPN
When the setting is enabled, the system allows the VPN tunnel between a remote client and the system to
encrypt the data transmission via PPTP. The system’s VPN supports end-users’ devices under Windows 2000,
Windows XP SP1, SP2 and Windows Vista. Start IP field must be entered when enabled. The Client Policy,
Supported Authentication Servers and the Remote VPN login page also can be customizing here. Check the
Enable
or
Disable
radio button in the Active column to activate or deactivate this function. If the Remote VPN
function is enabled, enter the
Start IP
in the Client IP Address Range column.
Note: Vista users have to check enable in the Active column.