AD Remote Authentication over Managment interface?

Thanks nitass. That got me started, now ldaps request are originating from the management interface . However, now the secure logs state that:

 Jul  2 11:26:43 local/gtmhostname err httpd[20108]: [error] [client 1.1.1.1] Could not obtain user credentials
r also happens when ssl handshakes go wrong.
Jul  2 11:26:46 local/gtmhostname alert httpd[20301]: pam_unix(httpd:auth): check pass; user unknown
user= rhost=1.1.1.1 

Which is werid because its the same config from our Internal environment, and I've verified the firewall is set to allow connections over 636. Tested with telnet.