JSI Tip 0344 - Setting up a Virtual Private Network (VPN) using Point-to-Point Tunneling Protocol (PPTP).

PPTP allows you to extend your network over the internet by making a dial-up connection to your ISP. To configure Windows NT for PPTP:

In Control Panel / Networks, add the Point-To-Point Tunneling Protocol.
Remote Access Services Setup will be invoked for you to add at least one VPN port.
Specify the protocols to run for the VPN port. You can install up to 256 VPN ports.
Reboot.

To establish a PPTP connection to your server over the internet:

Implement tip 082.

In DUN, add a phone book entry for your server. The phone number is the IP addresss or host name of the sever. Specify the VPN port you will use (Dial Using).

The first time you log on, you will have to join the domain:

Log on to your computer using a local account with administrator rights.
Dial your ISP.
Dial your PPTP Server.
Control Panel / Network / Identification / Change / Domain and enter the domain name and click OK.
Click OK when you receive a "welcome" message from the domain.
Click Close.
Reboot when prompted.

To connect to the PPTP server:

Log on to your computer using a local account with administrator rights.
Dial your ISP.
Close all programs and log on as a different user.
Press CTRL+ALT+DELETE to log on when prompted.
Enter your domain UserName and password. In the Domain box, click the name of your Windows NT domain. Check the Logon Using Dial-Up Networking box and then click OK.
In the Phone Book Entry To Dial box, click the phone book entry that you use to connect to your PPTP server, and then click Dial. Confirm your UserName, password, and domain, and then click OK.


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