While GNS3 supports many older images via the Dynamips emulator, most are now End-of-Life (EoL). The following are commonly used for CCNA/CCNP labs: GNS3 Documentation Image Type Recommended Model Emulator in GNS3 Router (Modern) Qemu / GNS3 VM Switch (Modern) Qemu / GNS3 VM Router (Legacy) 7200 (c7200-adventerprisek9-mz.152-4.M7.bin) Qemu / GNS3 VM How to Import into GNS3
To legally obtain Cisco IOS images, you generally need a Cisco account with an active service contract. Spiceworks Community Cisco Modeling Labs (CML) download cisco ios image for gns3
: This is the current and preferred method for getting modern Cisco images (like IOSv, IOSvL2, and ASAv) for GNS3. You can purchase a subscription at the Cisco Learning Network Store Physical Hardware Extraction While GNS3 supports many older images via the
Once you have the image file, follow these steps to add it to your environment: Open GNS3 and go to Edit > Preferences For Dynamips (Legacy) : Navigate to IOS Routers > New and browse for your image file. For CML/VIRL Images : Navigate to Qemu VMs > New or use the GNS3 Marketplace templates for a guided import. You can purchase a subscription at the Cisco
: If you own Cisco hardware (e.g., a 7200 router), you can legally copy the IOS image directly from the device's flash memory to use in GNS3. Cisco Support Portal