well, you could have pointed the finger on this before :P
2010-11-04 18:09:53.396212 [DEBUG] mod_rad_auth.c:491 sending radius packet ...
2010-11-04 18:09:54.571999 [DEBUG] mod_rad_auth.c:497 RADIUS Authentication OK
2010-11-04 18:09:54.571999 [DEBUG] mod_rad_auth.c:519 Handle attribute: BILING_MODEL
2010-11-04 18:09:54.571999 [DEBUG] mod_rad_auth.c:529 No found out attribute id: 109, pec:9, (BILING_MODEL)
2010-11-04 18:09:54.571999 [DEBUG] mod_rad_auth.c:519 Handle attribute: CREDIT_AMOUNT
2010-11-04 18:09:54.571999 [DEBUG] mod_rad_auth.c:529 No found out attribute id: 101, pec:9, (CREDIT_AMOUNT)
the attribute with id:109 and pec:9 is not found in the returning radius message. This can just mean 2 things:
1. really not present in the returning radius message
2. the module doesn't have an appropriate dictionary referencing pec 9 and id 102.
well, here its the dictionary im positive of that... so find attached the one im using. Put this on your server and its gonna work.