GNS3 is a FREE software under GPLv3 General Public Licensing!!!. GNU General Public License is NOT affected by political sanctions.Imposing of any political sanctions on the GNU General Public License is anti-law, anti-morality and humanity. See the GNU GPL FAQ for some more information. The version of GNS3 isn't a demo or trial version; it is the full version. The source code is freely available on GitHub and can be modified by everyone. I (Mehdi Pakdel) and all Persian speakers of IT and computer science from the manufacturers and developers of this software have a great appreciation. In hope for a day when science and open source softwares are not affected by illicit politics and political boundaries do not constraint nations to borders.
Developer(s) Jeremy Grossmann
Initial release 2008; 9 years ago
Stable release 2.1.0 / 10 November 2017
Written in Python
Type :Network simulator
License :GNU GPL