Windows 2003 IAS Radius migration to Windows 2008 R2 NPS


Sometime ago I was working with a customer on migrating the windows Server 2003 based Radius – Internet Authentication Service (IAS) to Windows Server 2008 R2 based Network Policy Server (NPS), so I thought to provide the steps as some other blogs are missing some steps:

To perform this migration, perform the following steps:

Copy  IASmigreader.exe from the Windows Server 2008 R2 installation media at \sources\dlmanifests\microsoft-windows-iasserver-migplugin folder to the Windows 2003 server and run as shown below to export the IAS configurations. It will create the configuration file:

 

image 
 
Open the IAS.txt file and find the following text:
=================================================
SystemInfo
=================================================
0
16
515

Replace the text with:

=================================================
SystemInfo
=================================================
0000000009
16
515

Save and import the changed file. This is referenced in http://support.microsoft.com/kb/979599

Copy the ias.txt file that is generated in the above command and updated as mentioned above to the Windows Server 2008 R2 and import the configuration like so:

At the 2008 R2 Server:

image

Open NPS console and verify the configurations have been successfully imported.

Also register your NPS service in Active Directory from the NPS console.

Read my favorites blogs:

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Microsoft Exchange 2010 CAS Array – Steps and Recommendations

Appear Offline in Microsoft Office Communicator Server 2007

Microsoft Exchange 2010 Test cases

Microsoft Exchange Server 2010 Disaster Recovery

Microsoft Exchange Server 2010 Upgrade Guide

Comments (2)

  1. Anonymous says:

    Thank you

  2. Eric says:

    Thanks for this.