According to the Radius RFC, Chapter 2.1 Challenge-response (
http://www.ietf.org/rfc/rfc2865.txt), I read that it's possible to activate a challenge-reponse (Access-Request, Access-Challenge, Access-Request, Access-Accept) with Radius, is that possible with Free Radius, and if it's possible how to make this ?
I just want to analyze the frame with Wireshark, for the contents of the frames.