Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Win2K Server based VPN

Posted on 2003-11-14
1
Medium Priority
?
781 Views
Last Modified: 2010-04-12
I've been with this company for exactly 2 weeks now, so I'm not completely up to speed on how the network is configured due to a lack of updated documentation.

Here's the scenario:  We are planning on switching to AT&T as a data provider.  AT&T has installed the new T1 connected to a Cisco 2600 router that is fully managed by AT&T.  Since the company is small, I decided to setup a Win2K Server based VPN.  Currently, the server is configured and connected to the LAN interface on the router and to our LAN through the other NIC on the server.  I can connect to the server remotely from inside the LAN and verify that we can get to the Internet from the NIC that is connected to our LAN.  However, I cannot establish a VPN connection or connect to the other interface that has been configured with one of the public IPs given to us by AT&T.  I think the issue might be the configuration on the router, but I figured I would try this support method before I put in a call to AT&T.  

As always, any help will be greatly appricated.

 
0
Comment
Question by:omneonbell
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 9

Accepted Solution

by:
svenkarlsen earned 1000 total points
ID: 9752081
Hi omneonbell,

Probably the router configuration, - you need to have AT&T configure static NAT routes on the router to your server for all the ports you will be using:

A router and firewall must be able to pass TCP port 1723 (Point-to-Point Tunneling Protocol [PPTP]) and Generic Route Encapsulation (GRE) protocol 47 for PPTP traffic to connect correctly. When a cable/DSL router cannot map GRE protocol 47 to the Routing and Remote Access server, you cannot connect to the server from the Internet.

 
Here's a good link for you:
http://support.microsoft.com/default.aspx?scid=kb;en-us;321516

Kind regards,
Sven
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Juniper VPN devices are a popular alternative to using Cisco products. Last year I needed to set up an international site-to-site VPN over the Internet, but the client had high security requirements -- FIPS 140. What and Why of FIPS 140 Federa…
Secure VPN Connection terminated locally by the Client.  Reason 442: Failed to enable Virtual Adapter. If you receive this error on Windows 8 or Windows 8.1 while trying to connect with the Cisco VPN Client then the solution is a simple registry f…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question