I was about to configure kerberos connections to my test OpenLDAP system (2.4.7, debian sid packages) when I discovered an oddity....
# ldapsearch -x -b "" -s base -LLL supportedSASLMechanisms dn: supportedSASLMechanisms: CRAM-MD5 supportedSASLMechanisms: DIGEST-MD5 supportedSASLMechanisms: LOGIN supportedSASLMechanisms: PLAIN supportedSASLMechanisms: NTLM
I don't see GSSAPI in the list.
Ciao, Michael.