1)   NetInfo 7.8
NetInfo is a collection of 15 different state-of-the-art network diagnostic tools on a single, easy-to-use interface that allows you to isolate faults, simplify processing of diagnostic data, and increase internal network security.
internet tools, internet utilities, network tools, network utilities, network scanner, ping, traceroute, lookup, finger, whois,

 2)   Advanced IP Scanner 2.2.224
Advanced IP Scanner is a free, fast and easy-to-use multithreaded network scanner. Its many useful functions include scanning for HTTP, HTTPS, FTP and shared folders, improved integration with Radmin, and remote shutdown and wake up!
advanced ip scanner, network scanner, port scanner, wireless scanner, download free scanner, wifi scanner, net scanner, scan ports, scan HTTP, scan HTTPS,

 3)   Free IP Scanner 2.0
Free IP scanner is a very fast IP scanner and port scanner. Powered with multi-thread scan technology, it can scan hundreds computers per second. It simply pings each IP address, gets hostname, MAC address, NetBIOS information, scans ports, etc.
ip scanner, port scanner, network scanner, ip scan, free ip scanner, free port scanner, IP monitor,

 4)   Free Axence NetTools 3.1
A comprehensive set of FREE network tools: Port/Network Scanner finds all the nodes in a network; NetStat lists local connections; Service & Port Scanner checks for all open ports and running; TCP/IP workshop, NetCheck, ping, trace, lookup, bandwidth
network monitoring, host monitoring, ping, visual, graphical, trace, traceroute, lookup, network scanner, port scanner,

 5)   Nsauditor Network Security Auditor 2.4
Nsauditor is a network security scanner that allows to audit and monitor network for possible vulnerabilities,checks methods that a hacker might use to attack it. Over 45 network tools for scanning,sniffing,enumerating and gaining access to machines.
network audit, network auditing, network scanner, network security, network tools, network software, net tools, network monitoring, port scan, network utils,