GNS3 1.2.3

SoftPlanet rating
User rating

Not rated yet
Your Rating


  • Windows 2000
  • Windows 2003
  • Windows 7
  • Windows 8
  • Windows Vista
  • Windows XP
  • Windows 8.1

Latest version


Last month's downloads


Product ranking

#1 in Network Testing


55.75 MB


Free download

SoftPlanet makes it possible for everyone to get free GNS3 download directly from our servers. There is no registration needed for downloading.

Safe, Trusted and Spyware Free

Report new version

Report problem


Email Message *
GNS3 1.2.3


The graphical interface of the program is nicely done and has all toolbars displayed. Users can move them anywhere they want to facilitate their work with the emulator. The list of all supported by this program devices is shown in a pane, located to the left. You can show only routers, switches, end devices or all together. Captures and Topology Summary panes are docked to the right while the Console pane is by default at the bottom. The View menu has a sub-menu, called Docks, where anyone can manage the visualization of all available devices.

Read more

Basic Operations

All included with the program utilities are listed in the Tools menu. You can check the official documentation and watch all video tutorials provided at a glance on the developer's website. In fact, there are many router simulators on the market, but they have limited capabilities. GNS3 provides about 1000 packets per second throughput in a virtual environment. A normal hardware device will provide a hundred times greater throughput. So the reality is that this app will not completely replace a real router, but it will simulate it in the best possible way.


Keep in mind, even if GNS3 is about simulation, it actually emulates most hardware devices in order to provide something that is close to a realistic simulation. A complete list of all supported by the app devices can be found on the website of the developer.


  • Cross-platform app
  • Text and video tutorials
  • Supports other emulators


  • None
Reviewed by: Igril Hristov


Our security scan shows that GNS3 is clean from viruses. The current version of GNS3 has been scanned by our system, which contains 46 different anti-virus algorithms. That ensures that GNS3 1.2.3 is 100% safe for your computer.

Need help?
Ask a question.

Write a title for your question. In the next step, you'll be able to add more details to your question.