Configure the DHCP Option that you created under Create New DHCP Options. Configuring this option for the server, automatically includes the scope.
In a Centralized site, the wireless APs use the SLP DA to discover the ExtremeCloud IQ Controller. The mobility agents use the SLP DA to discover the mobility manager. If there is no SLP deployment on the enterprise network, the ExtremeCloud IQ Controller is configured to act as a DA by default. If you put the appliance IP address in a DHCP server for Option 78, Wireless APs will interact with the appliance for discovery. Similarly, the mobility agents also interact with the ExtremeCloud IQ Controller to discover the mobility manager.