WAG200G VPN PPTP passthrough

WAG200G VPN PPTP passthrough

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Subject Author Date
WAG200G VPN PPTP passthrough bdridder 12-27-2006
Posted by on December 27, 2006, 3:28 pm
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Hallo,

Ik probeer een WAG200G router te configureren voor het doorlaten van
een VPN verbinding naar een Windows Server (2003 SBS).

Hiervoor heb ik bij Security -> VPN Passthrough -> PPTP PassThrough
enabled

En bij Application & Gaming -> Single Port Forwarding -> port 1723 over
TPC geforward naar de server.

Bij het maken van een verbinding krijg ik wel te zien "...controleren
gebruikersnaam en wachtwoord..." maar vervolgens lukt het niet (fout
721). In het event log van de server krijg ik de volgende melding:

"A connection between the VPN server and the VPN client xx.xx.xx.xx
has been established, but the VPN connection cannot be completed. The
most common cause for this is that a firewall or router between the VPN
server and the VPN client is not configured to allow Generic Routing
Encapsulation (GRE) packets (protocol 47). Verify that the firewalls
and routers between your VPN server and the Internet allow GRE packets.
Make sure the firewalls and routers on the user's network are also
configured to allow GRE packets. If the problem persists, have the user
contact the Internet service provider (ISP) to determine whether the
ISP might be blocking GRE packets."

Als ik "DMZ Hosting" enable kan ik wel succesvol een VPN verbinding
over PPTP opbouwen. Dit vind ik echter een te groot risico, aangezien
de server maar 1 netwerk interface heeft.

Graag hoor ik een oplossing op dit probleem.

Met vriendelijke groet,

Ben de Ridder


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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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