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| Configure VPN and enable PPTP |
| The VPN Point-to-Point Tunneling Protocol (PPTP) is implemented at Layer 2 (Data Link) in the |
| ISO-OSI network model and works by encapsulating VPN data inside PPP frames. These frames |
| are then encapsulated in IP datagrams and sent over an IP network. |
| PPTP is installed by default on Windows 2000 Server computers as a part of Routing And Remote |
| Access Service (RRAS). However, RRAS isn't enabled and configured by default. Follow these steps |
| to install and configure your server as a VPN server and enable PPTP: |
| From the Administrative Tools folder, run Routing And Remote Access. |
| Right-click the server and select Configure And Enable Routing And Remote Access. On the first |
| page of the wizard, click Next. |
| On the Common Configuration page, select Virtual Private Network (VPN) Server and then click |
| In the Remote Client Protocols dialog box, verify that all protocols are listed and then click Next. |
| On the Internet Connection page, select the connection to the Internet and then click Next. |
| On the IP Address Assignment page, select the method for assigning IP addresses to the clients, and |
| On the next screen, specify whether you want to use RADIUS server and then click Next. |
| To modify the PPTP configuration, right-click on the Ports node in the Routing And Remote Access |
| console and select Properties. Select WAN Miniport (PPTP) in the list box and click Configure. |
| The dialog box that appears will list configuration options. |
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