NS DS V3 and V4 don't support TLS. iP DS V5 does. They all do support SSL, however. On 14 Sep, Gayathri.A wrote: > hi all, > > I'm trying to use openldap tls-library to connect to netscape directory server running in another system. Initialising is going fine. But, ldap_start_tls is getting failed with an PROTOCOL error. > > What could be the problem? Please extend your suggestions.