A graphical network simulator to design and configure virtual networks

GNS3

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GNS3 2.1.9

  -  54.5 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of GNS3 2.1.9.


For those interested in downloading the most recent release of GNS3 or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download GNS3 2.1.9

  • GNS3 2.1.9 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    GNS3 2.1.9 Screenshot 1
  • GNS3 2.1.9 Screenshot 2
  • GNS3 2.1.9 Screenshot 3
  • GNS3 2.1.9 Screenshot 4

What's new in this version:

- Fix incorrect short port names in topology summary
- Add compute version in server summary tooltip
- Fix test for Qemu boot priority
- Fix boot priority missing when installing an appliance
- Support PATH with UTF-8 characters in OSX telnet console
- Allow users to accept different MD5 hashes for preconfigured appliances
- Do not try to update drawing if it is being deleted
- Catch exception when loading invalid appliance file

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