GNS3 version 1.5.2 has been released. This is a minor release to fix some issues found in version 1.5.1




  • The GNS3 server default port has been moved from 8000 to 3080.
  • Qemu VM type has been dropped when adding a new Qemu template using the Wizard.
    • Please download a template from the marketplace to install pre-configured VMs as described in this documentation.
  • Please report bugs/issues found in that release. We cannot possibly test every use case and we depend on reports to improve GNS3 (Thanks!).


Windows and Mac OS X


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


Linux installation


For Linux users we recommend an installation via Pypi.

pip3 install gns3-gui==1.5.2 pip3 install gns3-server==1.5.2


For an installation from our PPA (Ubuntu based Linux):

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



Network Training Updates

Over the past couple of weeks we have launched a couple new courses in GNS3 that you should check out: