Start GNS3 and the GNS3 VM
The most reliable and legal way to get virtual Cisco switch images is by purchasing a subscription. Visit the Cisco Learning Network Store. Purchase a CML Personal subscription. Once purchased, download the CML software package. cisco switch ios image download for gns3 install
The modern industry standard for running Cisco switches in GNS3 is using the QCOW2 images through the GNS3 Virtual Machine (GNS3 VM). Prerequisites GNS3 GUI installed on your local computer. Start GNS3 and the GNS3 VM The most
After installation, the final step is to drag the node onto the workspace, start it, and access the console. A successful install is marked by the "Router>" or "Switch>" prompt, indicating the software has booted correctly. Conclusion Once purchased, download the CML software package
Using GNS3 with the GNS3 VM (typically running in VMware or VirtualBox) offers several advantages over running everything locally:
If you already own a physical Cisco router or switch (such as a Cisco 3725), you can legally copy the IOS image from your hardware and import it into GNS3, provided you do not distribute the image to others.