: This is the "one-stop shop" for network pros. You can find everything from Cisco routers to FortiGate firewalls and Ubuntu desktop guests.
The download process only provides the ( .gns3a file). You must still provide the actual OS image (like a Cisco .bin or .qcow2 file) due to licensing restrictions. GNS3 Setup wizard with the GNS3 VM
: Some vendors, such as Extreme Networks , provide their own GNS3 appliance templates and ISO images directly on their GitHub or community pages. Step-by-Step: How to Download and Import