RE: SASL authentication

Hi, all: 

Sorry to bother you guys again. Yes, I have new troubles.

Now ldap works well with sasl binding in non-SSL mode. Yet, it does not look good in SSL connection: 
=========================================
<apManager> (Thu Apr 09 2009 16:45:55.215) <p8395,t3079326624,aba_ldap_interface.c,1451>
     INFO>> serverHost is [13.198.98.35]
<apManager> (Thu Apr 09 2009 16:45:55.215) <p8395,t3079326624,aba_ldap_interface.c,1452>
     INFO>> serverPort is [636]
......
<apManager> (Thu Apr 09 2009 16:45:55.215) <p8395,t3079326624,aba_ldap_interface.c,1533>
     INFO>> LDAP SSL CONNECTION SUCCESSFUL to 13.198.98.35:636 
......
<apManager> (Thu Apr 09 2009 16:45:55.215) <p8395,t3079326624,aba_ldap_interface.c,1641>
     INFO>> SASL Login
<apManager> (Thu Apr 09 2009 16:45:55.686) <p8395,t3079326624,aba_ldap_interface.c,1655>
     INFO>> SASL LDAP BIND with GSSAPI: Value of ldapStatus 48
<apManager> (Thu Apr 09 2009 16:45:55.686) <p8395,t3079326624,aba_ldap_interface.c,1662>
    ERROR>> LDAP BIND: Value of ldap failure status and text 48 Inappropriate authentication
=========================================
Any possible reason for this kind of error? In contrast, SSL mode works well when simple ldap binding is used. 

Looking forward to help, 
Xu Qiang