Free Network Monitoring and analysis tools

Wireshark

Wireshark is the world’s foremost and widely-used network protocol analyzer. It lets you see what’s happening on your network at a microscopic level and is the de facto (and often de jure) standard across many commercial and non-profit enterprises, government agencies, and educational institutions. Wireshark development thrives thanks to the volunteer contributions of networking experts around the globe and is the continuation of a project started by Gerald Combs in 1998.

Key Feature

  •  Visually rich, powerful LAN analyzer
  •  Quickly access very large pcap files
  •  Professional, customizable reports
  •  Advanced triggers and alerts
  •  Fully integrated with Wireshark and AirPcap

NetBalancer

NetBalancer is a Windows application for local network traffic control and monitoringBrowse and do any internet activity comfortably on your PC even when your download manager or torrent client downloads huge files from internet – just lower their network priority with NetBalancer

Control your traffic with priorities and rules Control every aspect of the network traffic on your PC with deep packet inspection (DPI), priorities and time based rules.

Advanced monitoring and statistics View real-time traffic data and build advanced traffic statistics and charts very any period of time

Control every aspect of the traffic flow on your computer. Set advanced rules and filters, edit network priorities for running processes and do many other operations on your machine or on a group of machines based on tags.

Advance IP Scanner

In a matter of seconds it finds and scans all computers on your network and provides easy access to their various resources, such as HTTP, HTTPS, FTP and shared folders.

With freeware Advanced IP Scanner you can scan all IP addresses on your local network. The remote PC shutdown feature lets you shut down any remote machine or a group of machines running Windows. You can also wake these machines remotely with Advanced IP Scanner if their network cards support Wake-On-LAN functionality.

Advanced IP Scanner and Radmin remote control software are deeply integrated. IP Scanner lets you scan your network, find all computers running Radmin Server, and connect to any one of them with one click. The free Radmin Viewer needs to be installed on your PC for you to access a remote machine running Radmin Server. With Radmin, you can access the remote PC in Full Control, File Transfer, and Telnet modes.

NetPerSec

NetPerSec is a lightweight Windows application that displays the current rate of network traffic being received and sent by your computer. The mini speed graph in the system tray (notification area) is especially useful for catching network problems at a glance, such as a sudden pause in data transfer.

NetPerSec measures the real-time speed of your Internet connection. Different types of connections promise different communication speeds, but is this what you’re actually getting? Due to network traffic, actual speeds are often slower than what is promised. Cable modems are fast if not many of your neighbors are sharing the line, but can slow down considerably with a heavy load. How do you know when it’s time to switch to DSL? NetPerSec lets you check your connection speed in real time. It monitors all TCP/IP activity to and from the Internet or other networks, and graphs the communication speed. Its dynamic tray icon shows send and receive activity with a bar graph or a histogram. For details, open the program’s main window to view current and average send and receive speeds in a configurable, graphical display. http://www.fileyogi.com/software/netpersec/ You can adjust the sampling rate and the amount of data used to compute the average.Easy Recovery Essentials.

Angry IP Scanner

Angry IP scanner is a very fast IP address and port scanner.

It can scan IP addresses in any range as well as any their ports. It is cross-platform and lightweight. Not requiring any installations, it can be freely copied and used anywhere.

Angry IP scanner simply pings each IP address to check if it’s alive, then optionally it is resolving its hostname, determines the MAC address, scans ports, etc. The amount of gathered data about each host can be extended with plugins.

It also has additional features, like NetBIOS information (computer name, workgroup name, and currently logged in Windows user), favorite IP address ranges, web server detection, customizable openers, etc.

Scanning results can be saved to CSV, TXT, XML or IP-Port list files. With help of plugins, Angry IP Scanner can gather any information about scanned IPs. Anybody who can write Java code is able to write plugins and extend functionality of Angry IP Scanner.

In order to increase scanning speed, it uses multithreaded approach: a separate scanning thread is created for each scanned IP address. The full source code is available,

 

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