How to install the VPN server on Windows Server 2003 Step by Step Tutorial

-->Go to the following : Start > Administrative Tools > Routing and Remote Access.

-->Right-click server’s icon and then select "Configure and Enable Routing and
Remote Access" to start the Setup Wizard. And then click Next .

-->Select the " Remote Access (dial-up or VPN)" and then click Next.

-->Check the VPN check box, and then click Next .

-->In the "VPN Connection " window, select the network interface is connected to the Internet,
and then click Next.

-->In the "IP Address Assignment window", there are two choices:

* Automatically Choose this option if you have a DHCP server.
* From a specified range of addresses Choose the option if the remote clients can only be
given an address from a specified pool of addresses.

-->In the next window, select default value of No, use Routing and Remote Access to
authenticate connection requests, and click the Next button to continue

-->Click Finish to turn on RRAS and to configure the server as a remote-access server.

Note: you have to setup RRAS and turn on the service