Discovery port scanning sample input

In the input example from the Shazzam probe, the device found is most likely a Windows system, since port 135 is in an OPEN state, but that will be determined when the classifier probe is launched.

Figure 1. Discovery troubleshooting port scanning

If you are not getting the expected returns (or any returns) from known IP addresses in a particular system, the best practice is to walk up the OSI model, which crosses all stages of Discovery.

Figure 2. OSI model