2.2.6 ILS Variations from the LDAP v3 Protocol
ILS communication differs from LDAP v3 in the following ways:
ILS does not support modify distinguished name (DN) (ModifyDN) requests. To move entries from one part of the directory to another, delete the entries and add them to the desired location.
The ILS LDAP server does not support server-side sorting.
The ILS LDAP server does not support TAPI session control operations.
The ILS LDAP server does not support friendly distinguished names (DNs), as specified in [RFC1781].