VPN in windows server 2008

How to install and configure VPN on Windows 2008

1. Open the Windows 2008 Server Manager or Initial Configuration Tasks.
2. Click the Add Roles.

3. Skip the Before You Begin page.
4. In Server Roles, check Network Policy and Access Services. Click Next.

5. 
   Read the information on the Network Policy and Access Services page. Click Next.

6. On the Select Role Services page, check the Routing and Remote Access Services and make sure theRemote Access Service and Routing are checked. Click Next.

7. Click Install on the Confirm Installation Selections page.

8. Click Close on the Installation Results page.

9. To configure RRAS, open the Server Manager, expand the Roles node in the left pane of the console. Expand the Network Policy and Access Services node and click on the Routing and Remote Access node. Or you can go to Administrative Tools>Routing and Remote Access. Right click on the Routing and Remote Access node and click Configure and Enable Routing and Remote Access

8. If you have two NICs on the server, select Remote access (dial-up or VPN). After click Next, check VPN.

9. If you have just one NIC, Select Custom configuration.

10. After click Next, select VPN access.

11. Follow the instruction to finish the configuration.


And finally you are really to work with RRAS.