Network Scan is security functionality, which allows users to input an address range for a given location. VSM then scans that address range with a specified port range, and shows a summary of all equipment, current open ports, highlighting the unsecure ports, and whether or not that equipment is under management by VSM. If not under management there is the option of adding it.
Access it via Security Manager.
To configure, click 'Add Address Range' and complete the form.