Freeradius as peap-mschap radius proxy

[russell]

Hi,

I am newbie to Freeradius and have to get a working solution for Friday.

I need to configure Freeradius on a Linuxmint 16 pc to be a Radius Proxy 
in front of a Windows 2008R2 NPS server. The Windows 2008R2 Server is 
configured to support peap-mschap Radius connections and is currently 
working.

The clients are coming from a variety of /24 network, the users being 
authenticated all exist on a single domain.

I have tried to google for information on peap-mschap proxying but find 
the information a little confusing.

Could someone point in the correct direction to get the information 
needed to configure Freeradius as a proxy server.

TIA