How to Install GNS3 on Mac

This article shows you how to set up and use GNS3 2.2.28 in macOS 12 Monterey on an Apple Mac computer.

Students preparing for Cisco exams may be using the Packet Tracer program mainly, but it is recommended to use the GNS3 software in order to design a more professional network.

With GNS3, you can create projects as if you are using a real device by emulating Cisco Router and Switch IOS images.

You can follow this video tutorial or the steps below to install the GNS3 simulator program in the latest version of macOS.

Step 1: Visit the official website of GNS3 from the link below and if you do not have a new account, create one and then click Free Download.

https://www.gns3.com

Step 2: Download GNS3 for Mac when you come across the download page for Windows, Mac, and Linux systems.

Step 3: After downloading the GNS3.dmg file to your computer, double-click on it to start the installation.

Step 4: After viewing the contents of the DMG file, drag and drop the GNS3 program to Applications.

Step 5: After the copying process is completed, open Applications, and run the GNS3 software.

Step 6: After running GNS3, select “Run appliances on my local computer” in the Setup Wizard window.

Step 7: Finally, configure the Local Server.

Step 8: To add a Cisco Router IOS image to GNS3, open Preferences.

Step 9: After clicking Dynamips / IOS Routers, click the New button. In the IOS Image window, specify the location of the IOS image of the Router you downloaded to your computer.

Step 10: After adding the Router IOS image, click the Idle-PC Finder button in the next window and find a suitable value for your computer’s processor.

Step 11: After adding Cisco IOS, you can watch how to add and configure Router and VPCS by following our video tutorial.

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In my personal blog, I will explain the solutions to the problems I encounter in the system, network, and information technologies for you. If you want to contact me or consult about a problem, you can send an e-mail to [email protected]