MiTeC Network Scanner is a free multi-threaded ICMP, Port, IP, NetBIOS, ActiveDirectory and SNMP scanner with advanced features. The program performs ping sweep, scans for opened TCP and UDP ports, ...
Nmap is a free network scanning software available for Windows, Linux, macOS, etc. This open-source freeware can be used to check ping status, scan the entire network, check the uptime of any host, ...