These are labeled "xxx netgr." Any site offering "xxx netgr" as an alternative to Nmap or Wireshark is a trap. Part 4: Step-by-Step – Replacing "XXX NetGr" with a Safe Workflow Imagine you need to "grope" your network for unauthorized devices. Here is a safe, professional method:
Use nping (part of Nmap) for a more detailed grope:
:: Show default gateway (NetGr basic) ipconfig | findstr /i "default gateway" :: Continuous ping to a target ping -t 8.8.8.8