Through this tutorial, I am going to try to explain you how works FusionInventory and the tasks of network discovery and inventory SNMP in fusioninventory.
If you think of be able to inventory the set of the equipment of your network without needing to intervene on GLPI. It is necessary to remove you this idea of the head.
During a discovery of your network, the agent must be able to have a point of reliable connection to be able to import the equipment. By default fusioninventory leans on the serial number, this one does not go back up systematically.
It is possible to activate the connection by address MAC.
You must have a GLPI installation with the Fusioninventory plugin installed and the scheduled tasks configured.
Your equipment (switches, nas, copiers …) must have the snmp service activated with a community to configure.