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GNS3 is extremely simple to install.

Either go to and sign up to receive a download link


Check out GNS3 on GitHub

But you are not done at all! As of now, the program is (mostly) USELESS.

GNS3 does not come with any Cisco IOS(router)/IOU(switch) firmware due to legal/licensing issues.

Please read guides for configuring the program further.

Sites to bookmark:

GitHub GNS3

SourceForge GNS3

GNS3 Homepage

This page!

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