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.