GNS3 New Version Released (GNS3 2.0)

GNS3 ,the most successful network simulation software, announced that they release the new version (GNS3 2.0). Here is the details of the new version :

This is a major milestone for GNS3 – this version brings a new architecture allowing us to add exciting new features and also gives us a solid foundation for more (including Labs).

Major new features of 2.0 include “save as you go” (thanks to the new architecture), smart packet capture, VPCS/clouds/switches templates, a new “cloud node”, a new NAT node and much more. GNS3 now supports a large, and growing list of vendors including Arista vEOS, Cumulus VX, Brocade Virtual ADX, Checkpoint GAiA, A10 vThunder, Alcatel 7750, NetScaler VPX, F5 BIG-IP LTM VE, MikroTik CHR, Juniper vMX and more….

Please see What’s new in GNS3 version 2.0 for a detailed overview.

IMPORTANT NOTE to upgrade from 1.5.x and earlier versions of GNS3

Please do not upgrade if you are working on something important like a certification or something else. Understand there is no rollback possible once you open an older project in version 2.0.



Windows and Mac OS X

Files for Windows and Mac OS X can be downloaded from here.

Linux installation

Ubuntu/Debian, install from our PPA:

sudo add-apt-repository ppa:gns3/ppa
sudo apt-get update
sudo apt-get install gns3-gui

For other Linux distributions, we recommend an installation via Pypi.

pip3 install gns3-gui==2.0
pip3 install gns3-server==2.0

 Known bugs and issues

  • A project will be closed if a client closes GNS3 even if two or more clients are connected to that same project.
  • Opening a .gns3 file from Windows explorer will work even when connected to a remote server. This should not be possible and we will add a proper error in a future release.
  • Warning about Qt threads may appear when exporting a GNS3 portable project.


Comment, feedbacks, bugs: please open new posts on the forum. We are also excited to hear what you think of the new features so send us a note on Twitter with the #V2GNS3 

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