netbios

Efficiently uncover network devices using a quick, versatile IPv4/IPv6 scanner. Perform ping scans, recognize available ports, and fetch data via WMI, SNMP, HTTP, SSH or PowerShell protocols. For added customization, use flexible filtering and display options, as well as other premium features.

This free network scanner identifies active computers with logged-in user names and shows their MAC and IP addresses. It can detect HTTP servers running on remote computers through TCP ports 80 and 8080, and allows users to scan a specified range of IP addresses.

A free security tool for Windows that can disable ports 135, 137-139, 445 and perform other security configurations.