: Routers, Switches (IOU/vIOS), Nexus, ASA/Firepower, and ISE. Others : Fortinet , Juniper, Palo Alto, and Check Point.
| Category | Examples | |----------|----------| | Cisco IOSv / IOSvL2 | 15.x, 16.x, 17.x | | Cisco IOS-XE | CSR1000v, Catalyst 8000v | | Cisco NX-OS | Titanium, 9k images | | Cisco ASA / ASAv | 9.x series | | Juniper vMX / vSRX | 18.x, 19.x, 20.x | | Arista vEOS | 4.x | | Windows | Win 7, 10, Server (trial/eval) | | Linux | Ubuntu, CentOS cloud images | | Other | HPE VSR, Fortinet FortiGate-VM, Palo Alto VM-Series (rare, very restricted) |
GNS3, as a project, does not distribute copyrighted images. You will never find an official download link on gns3.com labeled "Full Pack Images." The images (Cisco IOS, JunOS, etc.) are proprietary firmware. gns3 full pack images
Ultra-lightweight Linux nodes used as simple end-hosts to test ping, traceroute, and DHCP without draining system RAM. 3. How to Set Up and Import Images into GNS3
In large topologies, use the GNS3 resource monitor to track CPU and RAM consumption. If you notice slowdowns, consider replacing some resource‑heavy QEMU devices with lighter IOU images. You will never find an official download link on gns3
designed to run in QEMU. They provide a much richer feature set than IOU, including the ability to run IOS‑XE, but they require more hardware resources.
According to the official GNS3 documentation, GNS3 is unable to provide Cisco IOS images. Users need to either have an authorized account with Cisco or purchase a Cisco Modeling Labs (CML)/VIRL license to legally access images such as Cisco ASAv, IOSv, or IOSvL2. How to Set Up and Import Images into
Verify that you have selected the correct QEMU binary version (32-bit vs. 64-bit). The GNS3 VM includes both 64-bit and 32-bit QEMU 3.1.0 binaries.