Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Win2K Server based VPN

Posted on 2003-11-14
1
Medium Priority
?
785 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
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

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

Some of you may have heard that SonicWALL has finally released an app for iOS devices giving us long awaited connectivity for our iPhone's, iPod's, and iPad's. This guide is just a quick rundown on how to get up and running quickly using the app. …
OpenVPN is a great open source VPN server that is capable of providing quick and easy VPN access to your network on the cheap.  By default the software is configured to allow open access to your network.  But what if you want to restrict users to on…
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…
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
Suggested Courses

578 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