Chapter 1. Introducing GNS3

GNS3 is a cross-platform graphical network simulator that runs on Windows, OS X, and Linux, and it’s the collaborative effort of some super-talented, industrial-strength nerds—folks such as Christophe Fillot, Jeremy Grossmann, and Julien Duponchelle, just to name a few. Fillot is the creator of the MIPS processor emulation program (Dynamips) that allows you to run Cisco’s router operating system, and Grossmann is the creator of GNS3. He took Dynamips and integrated it, along with other open source software, into an easy-to-use graphical user interface. Duponchelle assists with coding GNS3, and his contributions have helped to advance the software.

GNS3 lets you design and test virtual networks on your PC, including (but ...

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