Summary>

In this chapter you have learned about the GNS3 family of applications, and hopefully now have a better appreciation of the many contributors to this product.

You now know how as to work out if your computer is going to be powerful enough to handle the size of the simulations you wish to run.

You have followed the process of downloading the appropriate files for your installation and installing them in the recommended order, and gone through the essential installation steps of defining the images and projects directories, tested your Dynamips installation and configured at least one IOS image ready for inclusion in a simulation. Ideally, you will have found a good Idle-PC value for this image, and you now have a working installation of GNS3 ready to build your first GNS3 project with Cisco emulated routers and the Virtual PC Simulator, which is of course what you will be doing in the next chapter.