GNS3

GNS3 0.6

Free
GNS3 0.6 is a graphical network simulator that analyze many network issues
4.2  (64 votes)
4.8
1.5.3 (See all)

GNS3 0.6 is a graphical network simulator that allows simulation of many topologies and emulates the behavior of many devices.
It also allows emulation of many network devices and many devices can be added by setting up different configuration to emulate the desired network device. Among the devices that can be configured and emulated are routers, PIX, firewalls switches, etc for different network protocols Ethernet, ATM, Frame Relay, serial, etc.
Besides you can connect the simulated network to the real world and see and analyze its behavior. It provides packet capture using Wireshark to analyze packets. It has a Symbol manager to add, change and customize the images for each network device, in fact you must add first symbols to be use on your simulations. It supports Multilanguage.
GNS3 allows you to save your projects for reuse and simulated them again in case modification of your network topologies. It also allows exporting your projects to PNG, JPG, BMP, XPM or PDF files.
Its installation process is very easy to perform and some additional libraries and programs (packet capture, Dynamips, Dynagen) are installed. There is no documentation into the program but there is a complete guide on its website. Is highly recommended that you download this documentation at http://superb-east.dl.sourceforge.net/sourceforge/gns-3/GNS3-0.5-tutorial.pdf
GNS3 works on Windows, Linux and MAC OSX platforms.

Ricardo Zayola
Editor rating:

Review summary

Pros

  • GNS3 is good graphical network simulator; it’s oriented to people who works with many network topologies and network complex devices

Cons

  • For a better use, is highly recommended to read the documentation available on its website
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tscisco

tscisco The best tool ever.

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bhushan dound

bhushan dound I have 32-bit Windows 7 OS. Which GNS version should I download?

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Kenyi

Kenyi I like GNS3 for its features.

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