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Step 5: Configure IAS

Step-by-Step Guide: How to set up a VPN, part 5

  1. Go to Administrative Tools -> Internet Authentication Service.
  2. From here, the first thing you need to do is to register your IAS server with Active Directory. To do so, right click on the Internet Authentication Service (Local) container and select Register Server in Active Directory.
  3. Click OK to complete the registration process.
  4. Now, right click on the RADIUS Clients container and select New RADIUS Clients. If you happen to know the IP address or DNS name of one of your client machines, go ahead and enter it along with a friendly name. Otherwise, leave it for now, as we'll be filling it in later when we set up the client connections anyway.
  5. Click Next.
  6. You will now be prompted for a shared secret. A shared secret is an encryption key used by the RADIUS Server and the client. Make sure that the Client Vendor option is set to RADIUS Standard, enter a shared secret, and click Finish.

HOW TO SET UP A VPN  Home: Introduction  Step 1: Setup requirements  Step 2: Implement DHCP services  Step 3: Create...

an enterprise certificate authority  Step 4: Install IAS  Step 5: Configure IAS  Step 6: Create a remote access policy  Step 7: Configure the VPN server  Step 8: Associate the VPN server with the DHCP server  Step 9: Configure your remote clients  Step 10: Test the client connection  Step 11: Alternate VPN configuration options

Brien M. Posey, MCSE, is a Microsoft MVP for his work with Windows 2000 Server, Exchange 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. For more information visit

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