2.2.0 - Shared Secret is incorrect

[Anja Ruckdaeschel]

But it DID appear in earlier versions of freeradius with default settings for
logging.

And I don´t see the difference to something logging Erros like

 Error: Ignoring request to authentication address * port 1812 from unknown
client x.x.x.x port 1092

regarding the mentioned DoS problem. 

We´re using a logfile monitoring for years in order to find misconfigured NAS
of ours.
Seems we cannot do this with freeradius 2.2.0 anymore?

Anja