Radius Accounting Counters

Using Freeradius I would like to test Radius Accounting-Response Counters on my DUT. Specifically these counters: Radius Accounting Malformed Responses Radius Accounting Bad Authenticators Radius Accounting Unknown types Radius Accounting packets dropped Is there a tool or a way to modify what the server will send for a response in freeradius. This is specifically for testing purposes. Thanks Scott