A device wants to talk to the ACS server to get authentication services. It wants to use CHAP. Where is the CHAP option as applied to the radius authentication function? How do you set up radius in ACS to accept CHAP passwords authentication for radius requests?
Specifically, Qradar wants to query Cisco ACS v4.2 to see if users logging into Qradar are authorized to do so. This fails because I can't find the place (if any) in ACS where CHAP can be used.