
Nmap A command-line utility that includes a range of network management tools, including IP address management features and a port scanner.ManageEngine OpUtils – FREE TRIAL A package of free network monitoring tools that includes a Ping-based network scanner, and a MAC address resolver.Start a 30-day free trial and get unlimited free use for up to 100 sensors. Paessler PRTG – FREE TRIAL This package of monitoring for networks, servers, and applications includes an IP scanner and is free to use.



Doing a Network Reconnaissance helps network managers improve security by identifying weak devices that can be potentially breached.
