GNS3 0.8.7

A handy, open source multiplatform graphical network simulation utility that targets both network enthusiasts and professionals.
GNS3 is a toolkit that can be used to simulate complex networks while also staying true to the way a real network performs. This is all done without requiring any dedicated hardware.

GNS3 comes with an intuitive GUI suitable for configuring an designing virtual networks that run on a large array of operating systems, such as Mac OS X, Windows and Linux.

GNS3 uses various emulators in order to give you accurate and complete simulations. The main emulators used by the application are VirtualBox, Qemu and Dynamips.

The application was designed as a professional alternative for network engineers and administrators, but can also be used by students and network enthusiasts.

GNS3 is one of the best tools one can use to experiment with new network features without trying them first in the real world. This way, you can easily target any malfunction and solve it with ease.

The utility provides multiple features that help you connect your virtual network to a real one. All in all, GNS3 is a great utility for testing and managing a virtual network, but is also suitable for users that need to perform network experiments.

Main features:

  • Emulating Cisco routers.
  • Load-balancing between multiple hypervisors.
  • Load and save in Dynagen's INI-like format.
  • Image export (JPEG, PNG, BMP and XPM).

last updated on:
July 9th, 2014, 1:35 GMT
file size:
48.1 MB
developed by:
GNS-3 Team
license type:
operating system(s):
Mac OS X
binary format:
Intel only
Home \ Network/Admin


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user rating 40



10 Screenshots
GNS3 - Here you can manage node types and view typology summary.GNS3 - Right clicking on an item will provide you with additional options.GNS3 - Some visualization actions can be accessed this way.GNS3 - This menu provides you with various control settings.GNS3GNS3GNS3GNS3GNS3GNS3
What's New in version 0.8.6
  • Fixed the broken snapshot feature.
  • Host devices don't automatically add tap interfaces in the generic Ethernet NIO list anymore.
  • Auto open for instructions files when opening the topology via the command line, a file explorer or a drag & drop on the workspace.
  • Modified the default Etherswitch configuration (renamed some macros + added vtp file nvram:vlan.dat)
read full changelog

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