Network Tools - Services and Products to Analyse, Document and Manage your network.

Analyze	Control & test	Administer
Super scan, is a simple but efficient port scanner	Getif gets all SNMP information from your equipment and present it under different tabs, Can also create graphs from collected values.	Newt, is a small and quick inventory tool network connected equipment
Colasoft, Graphic ping monitor, Mac-scanner, packet builder and player.	Portqry is Microsoft's tool to test if ports are open through the network.	Cattools is a tool to handle and backup network configurations. Syslogserver is exactly what the name implies, a log server
Scrutinizer is an application for collecting, saving and present Sflow and Netflow statistics	Qcheck is a performance measure application	Tterm is the best terminal emulator there is. If you like Putty better it's here.
Wireshark (former Etherreal) is a good and matured free sniffer.	PRTG collects SNMP information and present it in graphic format.	Netstumbleris used to discover and measure strength of wireless nets.
Foundstone has a lot of good tools	Nagios is an OpenSource tool for SNMP polling and alarms.	Phpip is a system for handling of IP addresses (IPAM)
TCPing is a good tool to check response on certain ports when ICMP is closed.	Zenoss is a management tool running in Unix environment	Softpedia has a lot of networking tools of various quality.
NADetector to detect and see who your PC is communicating with.	Big brother, is a web based application for supervision with a nice overview.	Windows Defender is a freeware from Microsoft to detect malicious code on PC:s

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