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Cannot access XP VPN

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by jeremicam

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On my home network I am unable to access the VPN that I have setup. I am using XP Home (I know I know!) and have setup the VPN correctly. The problem I am encountering is tunneling through my router. What specific ports need to be opened? Does Comcast allow this? I am not having issues with finding my IP, I use no-ip.com to track changes. By chance has someone done this before with a Linksys Routers before? I will include more info as to what router I have but I have tried opening port 1735 and allowing UPnP. Forwarded a port on the WAN side to the correct IP/Port on the LAN side. Maybe I am just not doing this correctly....

7 replies

by jeremicam

Wanted to clarify that I am using PPtP, XP home only allows that choice by default and I have no problem with it.

by hereinoz

Normally a VPN can connect out through a router with no problems, unless the router specifically is blocking outbound VPN traffic, and you don't make it clear if you are trying to connect out through the router or in through the router.

If you are trying to connect inbound through a simple NAT router, the standard Windows VPN client can't do it. There is an article to this effect on MS site, but I can't find it at the moment.

Is the router to which you refer in the "connecting from" or "connecting to" end of the VPN. It is possible that Comcast disallows VPN traffic, but I would reckon that is unlikely - they would have a lot of users mightily cheesed off!

by jeremicam

Firstly Thank you for your response, I am setting this VPN up in the following order.

XP Home Computer Hosting VPN ----> Router ---) Internet ---> (various places to access from)

I hope that clears things up. As far as does Comcast not allow incoming VPN connections I have not hard directly from a Comcast Rep yet but I will be calling this coming week to find out for sure.

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