, so I can recommend the best image versions for those labs?
If you have an active service contract (SmartNet) for specific hardware, you can download files directly from the Cisco Software Download Physical Hardware: download cisco ios image file for gns3
Follow the wizard to set the RAM and Slot requirements, then click Further Exploration Learn how to set up Cisco Modeling Labs (CML) to legally access the latest networking images. GNS3 Documentation for a step-by-step guide on importing legacy router images. Explore the differences between Dynamips and QEMU , so I can recommend the best image versions for those labs
You can extract IOS images from physical Cisco routers you already own by copying the file from the device's flash memory to a TFTP server. Supported Image Types in GNS3 download cisco ios image file for gns3