Running Discovery
WhatsUp Gold applies credentials and a sequence of steps to reveal, learn about, and decide which monitors suit devices on your network. Once a device is discovered, you choose if you want to manage/monitor the discovered device by promoting it to the My Network Map/Grid. Promoted devices count against your license total.
Network discovery scans can uncover device and host attributes, the device's role within the network (for example, DNS, SMTP, FTP server), and which other machines on the network the device shares dependencies or frequent connections/conversations with.
Before You Run a Scan
Prior to initiating a discovery scan, first ensure your network devices can be discovered and subsequently identified. WhatsUp Gold attempts to discover devices on your network using ping (ICMP) and by scanning for open TCP ports. Please check to see if network devices devices respond to one or both of these request types before beginning discovery.
After WhatsUp Gold discovers a device on an IP address, it uses SNMP or WMI data on that device to gather all available information including the manufacturer and model, any installed components such as fans, CPUs, and hard disks, the operating system, and specific services (such as HTTP or DNS). Devices should be configured to respond to SNMP requests whenever possible. Alternatively, WhatsUp Gold can also gather information about Windows devices using WMI. In most cases, the information available using WMI is also available using SNMP. Though, because SNMP requests are more efficient than WMI requests, Ipswitch recommends using WMI only when SNMP cannot be enabled or does not provide the same information as WMI. For the best discovery results, configure all of the credentials used by devices on your network prior to initiating a discovery scan.
Firewall Considerations
If a firewall exists between WhatsUp Gold and the devices to be discovered or if the Windows firewall is enabled on the computer where WhatsUp Gold is installed, make sure the appropriate ports are open to allow WhatsUp Gold to communicate via SNMP and WMI.
Virtual Machine Discovery
From the Discover > New Scan page, select Advanced Setting > Expand scan to any virtualization environments to control if Hyper-V or VMware hosts or VMs will be included in the network discovery process.
VMware. VMWare valid VMware credentials are used. VMware Tools are also required.
Hyper-V. Hyper-V devices are discovered when valid Windows (WMI) credentials are used. Groups and users for passing WMI management objects must be in place. Host OS Application firewalls must align with default Hyper-V firewall rules.