Step 5: Configuring the VPN server

With wireless networks proliferating it is a good idea to understand what it takes to build a VPN for a wireless gateway. Contributor and Microsoft MVP Brien Posey details the necessary steps in this step-by-step guide.

Now it's time to configure the VPN Server. Once Windows is installed and you have joined the server to the domain, you may begin the configuration process by opening the server's Network Connections folder and renaming the connections to something more meaningful. This is important because the VPN server will have two network connections and it is a must that you keep track of which connection is attached to which network. I recommend naming the connections "Wired Network" and "Wireless Network."

At this point, select the "Routing and Remote Access" option from the "Administrative Tools" menu to open the "Routing and Remote Access" console. Right click on your VPN server in the console tree and select the "Configure and Enable Routing and Remote Access" option from the shortcut menu. This will launch the "Routing and Remote Access Server Setup Wizard."

Click "Next" to bypass the wizard's Welcome screen and you will see the wizard's Configuration screen. Select the "Remote Access" (Dial-Up or VPN) option and click "Next." On the following screen, select the VPN check box and click "Next." You will now see a screen which displays your machine's network connections. Select the connection attached to the wireless network, verify that the "Enable Security" check box is selected, and click "Next." On the following screen, verify that the "Automatically" option is selected and click "Next."

On the following screen, select the option to set the server up to work with a RADIUS Server and click "Next." Now, enter the IP address of your IAS server and enter the shared secret that you assigned to the RADIUS Server. Click "Next" followed by "Finish."

You aren't quite done setting up your VPN Server yet though. You must still associate the VPN Server with your DHCP Server so that wireless clients are assigned an IP address. To do so, navigate through the console tree to your server/IP Routing/DHCP Relay Agent. Right-click on the DHCP Relay Agent container and select the "Properties" command from the shortcut menu. When the DHCP Relay Agent Properties Sheet appears, enter the IP address of your DHCP server and click "Add," followed by "OK." Your VPN Server is now configured.

How to create a VPN for your wireless network

 Home: Introduction
 Step 1: Server requirements
 Step 2: Server placement
 Step 3: Setting up the certificate authority
 Step 4: Configuring the authentication server
 Step 5: Configuring the VPN server
 Step 6: Configuring wireless clients

Brien M. Posey, MCSE, is a Microsoft Most Valuable Professional for his work with Windows 2000 Server and IIS. He has served as CIO for a nationwide chain of hospitals and was once in charge of IT security for Fort Knox. As a freelance technical writer, he has written for Microsoft, TechTarget, CNET, ZDNet, MSD2D, Relevant Technologies and other technology companies. You can visit his personal Web site at
Copyright 2005 TechTarget

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