VPN Help


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I am trying to set up a vpn between a Win2000 Pro machine and a WinXP Pro machine. The Win2000 machine is set up to accept incoming connections, and I have port 1723 forwarded to it from the router.

The problem comes when actually trying to connect to it from the XP box. I have set up the vpn connection, but when I click the connect button nothing seems to happen - it just times out.

I have various windows services disabled and I am running zonealarm (on both machines) (I have tried disabling it). Can anyone shed any light on this? Have I disabled a key service by mistake?

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Here is a guide to find out if it is a port issue, and what portion does the issue lay:

1) From another machine on the LAN that the VPN is set up, go to the command prompt and type in "telnet 0.0.0.0 1723 (where 0.0.0.0 is your LAN IP address for the VPN server). If you get an error, then your VPN server is not setup properly. If you get a blank screen, or a login prompt or some sort of response your VPN server is accepting connections. If you get an error message you can skip the rest of the steps, and it is a problem with your VPN server setup.

2) From a machine connected directly to the internet (i usually use a dialup connection), go to the command prompt and type in "telnet 0.0.0.0 1723 (where 0.0.0.0 is your WAN IP address for the VPN server). If you get an error, then your firewall is not forwarding ports properly. If you get a blank screen, or a login prompt or some sort of response your router is forwarding the port and your VPN server is responding. If you get an error message you can skip the rest of the steps, and it is a problem with your router configuration.

3) From your XP machine, go to the command prompt and type in "telnet 0.0.0.0 1723 (where 0.0.0.0 is your WAN IP address for the VPN server). If you get an error, then your XP machine's firewall is not allowing 1723 as a outgoing port. If you get a blank screen, or a login prompt or some sort of response your router is forwarding the port and your VPN server is responding, and you should be able to connect into the VPN server fine.

Let me know the outcome!

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Thanks for your reply, I tried all that, and I got it to work in the end. The 2000 machine's zonealarm didn't have the router in it's trusted zone so the forwarded packets were being blocked! Simple in the end!

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