Icinaga2 web with auto discovery LibreNMS

Good morning ! I am a system technician and I am asked to set up icinga the graphical version with the automatic discovery of Librenms.

Currently the graphical version of Icinga is installed and in a second virtual machine I did detect the entire network in discovery where the majority of the devices were detected in arp is not applied to a graphical interface.

How does it work so that Icinga can use Librenms auto-discovery and be able to apply it to the GUI?

Thanks in advance !