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VPN Problems

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by ftpgood

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I am trying to setup Windows 2000 VPN Server behind a firewall (Linux). I have port forwarding enabled on firewall to forward ports UDP 500, TCP 1723 and IP 47 to VPN server (to internal static IP address). What I should do on VPN Server (I would assume I don't need to setup port filtering on VPN box). PPTP ot L2PT? To Enable and install VPN box as RAS first (Tried using MS's wizard to install VPN Server - it enables port filtering :(. Server has two network interfaces - both on local network with static IP-s. DHCP, WINS and DNS are functiong properly. When accessing VPN from my home I get msg. "Verifying Username and password" and than "Server is not responding, please try later".

Any help would be welcomed....

Dino

1 reply

by vico

I had the same exact problem until I found an article about the GRE packets....

The most common problem is opening the firewalls to allow both port 1723 and GRE packets (IP protocol 47) through.

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