Configuring a discovery method (optional)
Observer discovers network names using two separate methods—IP or Microsoft Network Discovery. Both of these methods have specific configuration options, which can be set by clicking Settings.
The default discovery method, IP, places some additional load on your network during the discovery process. If you want to passively discover the names instead, click the Settings button and choose “Passively discover IP addresses.” Passive discovery may take longer than active, but it requires the least amount of network resources.