IQ not logging though packet interceptors

Hi,

I am using openfire version 4.1.3 and i have written a packet interceptor to log all the IQ and Message passing thourgh the server which is working very well.

Only one log i am missing is authentication Iq log which is not intercepted by the packet interceptor so any one have a clue how to intercept without modifying openfire source code?

Thanks,
Hiren Vavadiya