Thanks EssentialRoot. I will try adjustments of the syntax you provided.
Could be the reasons on the dhcp debug logs that said ;
Jul 20 16:10:42.584649 No Option-82 overrides
Jul 20 16:10:42.584664 [INFO] jdhcpd_process_relay_option60: No Option-60
Jul 20 16:10:42.584674 jdhcpd_process_relay_generic_option(): af_type is JDHCPD_AF_INET
Jul 20 16:10:42.584688 [INFO] jdhcpd_process_relay_generic_option: Have relay-option
Jul 20 16:10:42.584701 No active-server-group configured
regards,
d