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How to Set Up a Private Network Over the Internet Using PPTP

This article was previously published under Q161410
This article has been archived. It is offered "as is" and will no longer be updated.
This article describes how to set up a private network connection over theInternet using the Point-to-Point Tunneling protocol (PPTP).
You can establish secure, multiple-protocol Virtual Private Network (VPN)connections over public data networks such as the Internet using PPTP. Bydialing into your Internet service provider's point of presence (POP), youcan access your corporate networks and programs without dialing directlyinto the company's network. PPTP connects directly to the target server bycreating a virtual network for each remote client. A Windows NT 4.0 Serveradministrator can monitor and manage such a virtual network just like anyother remote access port.

To use PPTP to connect to a server securely across the Internet, you mustfirst install the PPTP protocol. To do so, follow these steps:
  1. In Control Panel, double-click Network, and then click the Protocols tab.
  2. Add Point To Point Tunneling Protocol.
  3. After the protocol is loaded, Remote Access Services Setup is invoked. You must add at least one VPN port as a port in RAS Setup. You may need to configure the newly created VPN adapter to "Dial out and receive calls." The default setting is "Receive calls only."
  4. Specify the protocols to run for the VPN port. You can install up to 256 VPN ports. Each VPN can be connected to a network.
  5. If you have Service Pack 3 or later installed, reapply the service pack, and then restart the computer.
To make a PPTP connection to a target server over the Internet, followthese steps:
  1. In Dial-Up Networking, make a new phone book entry for the target server. For the phone number, specify the IP address or host name of the server. Make sure to specify the VPN port you want to use.

    NOTE: After you have a phone book entry set up, you can check and modify phone book settings by clicking More, and then clicking Edit Entry And Modem Properties. In the Phone Book Entry dialog box, verify that the Dial Using box specifies a VPN port. Click the Server tab, and verify that a protocol that the target server uses is selected. You can specify the security you want on the Security tab.
  2. Dial your ISP and make your connection to the Internet.
  3. When you are connected to your ISP, dial the target server to establish the PPTP connection.

Article ID: 161410 - Last Review: 12/04/2015 16:01:03 - Revision: 1.1

Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 4.0 Standard Edition

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