This doc will help to connect your internal(VM) LDAP server to any LDAP browser (jx explorer, Apache Directory). Basically, I have installed an application with LDAP server in my Virtual Machine (vmware). After then, I was trying to connect that internal ldap server to Apache Directory in my Host Computer. Thoug I could access application server through my browser, but could not able to make connection of the ldap server into the Apache Directory. Later I found this solution that is the port of that ldap server was not able to communicate with my host computer even after adding that port into the firewall. Actually we have to create a tunnel of the ssh server to connect that port.
bind dn: cn=admin/directory manager server address: localhost/ip:port server password: password