Disabling log entries for rejected users

[Michał B]

Ok, let me explain some more details about my situation. Maybe you will 
be able to help me, give some good idea.

Yes, I have settings "auth = yes" and "auth_badpass = yes", because I 
need them.

Imagine two different situations about denied clients:

1. Technician has set wrong login or password on authenticated device. I 
need messages in log, for debugging reason.
2. The user device has been blocked by administrator (no payment, or 
something like that). The device is trying to authenticate every second, 
filling radius logs with tons of unnecessary messages.

I want to get rid of messages coming from situations like 2, but still 
have messages from situations like 1.

Regards!