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VPN Problem

L

LASTGUY2GETPS2

Platinum Member
Okay I have a compuer setup to recieve VPN Connections. I can easily connect my laptop when connected to the same intranet, as in vpn server IP = 192.168.0.XXX. How do I setup the server to accept connections from the internet. I've went to IPCHICKEN.com to find my Public IP address and enabled port fowarding on port 1723 to the server. Yet when I attempt connecting to the public IP, I can't.

What am I doing wrong?
 
It sounds like you have a Windows PPTP VPN, which not only requires that you forward TCP Port 1723 to your VPN Server, but that you also allow Protocol 47 (GRE) to pass to that same VPN Server.

If you are using a Windows PPTP VPN and the built-in Windows client, you'll receive an Error 721 if you aren't forwarding the Protocol 47 (GRE) packets.
 
Originally posted by: LASTGUY2GETPS2
Now how would I go about fowarding Protocol 47 Packets on a D-Link Router?
Click to expand...
On home-level routers, all you can usually do is make sure you have the latest firmware installed and enable "VPN Passthrough". Some of the more complex home routers, like the old Cisco 6xx series, have specific programming required to enable VPN passthrough.

Frankly, the last D-Link router I tried didn't do passthrough correctly. Sometimes it would connect, but sometimes not. There are known issues getting various home-level routers to work reliably with VPNs. Some work, some don't, and you often can't predict which ones will work properly.

This $90 Netgear router, is used at one of my clients who does multiple simultaneous Windows PPTP VPN connections. I just purchased one for my office and I'm hoping it will work there, too. This particular modem will also act as a hardware VPN Server itself, but I prefer Windows VPNs as they are easier for me to monitor and manage.
 
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