There are four discovery methods you can use:
IP discovery: Use the ZENworks discovery engine to collect information about devices on your network. The engine uses various protocols and standards (WMI, WinAPI, MAC Address, NMAP, ZENworks, SNMP, SSH) to discover and collect information from devices that you identify through IP address ranges.
LDAP directory discovery: Use the ZENworks discovery engine to search Novell eDirectory or Microsoft Active Directory for device objects. You specify the contexts to search and the filter to use for the search.
CSV import: Import device information from a comma-separated values (CSV) file. At the minimum, the file must contain the IP address or DNS name for each device.
Advertised discovery: Use the ZENworks discovery engine to collect information about devices that have the ZENworks preagent installed.