4.2.1 Stay Alive Refresh Bind
The TTL refresh is initiated by making a LDAP Bind request to an ILS Server. If LDAP v2 is offered, then no authentication happens. When no authentication is to be performed, the simple authentication option is chosen, and the password length is zero.<31>
The default port for an ILS Server is TCP port 1002.
When a successful bind has been made, an LDAP Bind Response with a resultCode == 0 is returned.