GNS3 – Emulating Network Infrastructure on Debian 8.2

In this tutorial, I will show you the basis to install and operate this software. The GNS3 version that will be used in this tutorial is the 1.5.1, on a Debian 8.2 (Jessie) system. GNS3 (Graphical Network System 3) is an emulation software that let’s you see the interaction of network devices in a network topology.