The Name Resolution, IP Network, and Neighbor probes contact the autodiscovery data sources to gather the topology and IP address table (ipAddrTable) MIBs of the seed systems to determine what other systems are known to the seed systems. As these systems are discovered by autodiscovery, they too are probed for candidate systems.
The autodiscovery process uses three different sources of information to discover candidate systems:
IP address table MIB
ARP table MIB
By default, autodiscovery uses the topology and IP address table MIBs of the discovered systems (initially, of the discovered seed systems) because the MIBs are very reliable sources for topology information. The procedure for adding the ARP table MIB as a data source is presented in the VMware Smart Assurance IP Manager User Guide.