When the discovery hook scripts run

The discovery hook scripts are identified in the DISCOVERY_CUSTOM.import files located in the BASEDIR/smarts/conf/bgp|eigrp|isis|ospf directory in the
installation area. For example, the discovery hook scripts for
are identified in the BASEDIR/smarts/conf/bgp/DISCOVERY_CUSTOM.import file.
Each time
performs a discovery, it runs the standard discovery probes, plus the discovery hook scripts that are identified in the relevant DISCOVERY_CUSTOM.import file. By default, running the discovery hook scripts has no effect on the discovery process because the scripts are just template files. You must open the scripts with an editor and add the code or prose that performs the actual processing.
You must have root or administrative privileges to edit the discovery hook scripts.