To copy the IAS configuration to another server
Open Command Prompt.

At the command prompt, type netsh aaaa show config >path\file.txt.
This stores configuration settings (including registry settings) in a text file. The path can be relative or absolute, or it can be a UNC path.

Copy the file you created to the destination computer.

At a command prompt on the destination computer, type netsh exec path\file.txt.
A message appears indicating whether the update was successful