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Dr. VPNlabs Question (Archived)
 Author  Question
Joseph Brown   posted: 2002-02-28 10:30:43
I have to connect a remote office with 1 windows 2000 server to our main office with 12 PC's on a win2k Domian. The company is small, so price is somewhat of a concern. The remote site connects to the internet via a DSL line at 128 Kbps. The main site is connected to the internet via a comcast@work cable connection, because DSL was not available in that area. I tried using the Windows 2000 servers to create the VPN but I had difficulties doing this because by default comcast's on-site router blocks all inbound ports. I pay for the openport service and have tried opening what I thought were the correct ports. What would be the most cost effective hardware or software solution that will work for my situation.
Thank You for your help
 Author  Answer
Dr. VPNlabs   posted: 2002-02-28 12:49:09
Joseph,
I don't know that a hardware VPN solution would solve your problem.
Here are some other things to check:
Have you opened 1723, 1721 and UDP 500?
Does your router pass GRE packets(protocol 47)?
Also does your router pass Protocol ID
50 (IPSec ESP) and Protocol ID 51 (IPSec AH).

If you want to get an inexpensive VPN solution, look at http://www.snapgear.com/ http://www.netscreen.com/ or http://www.zyxel.com .

Do you have control over what ports are open or closed on the Comcast router?

cheers,
Dr. VPN Labs Staff
 
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