Check that the feature set is AdventerpriseK9. Some "extra" downloads are actually crippled or evaluation versions.
Cisco actively protects its IOS images. Distributing this file without permission violates Cisco’s End User License Agreement (EULA) and copyright law. Penalties can include account termination, legal action, and blacklisting from training programs. Check that the feature set is AdventerpriseK9
| Component | Meaning | |-----------|---------| | | Intel 86 Binary Image – runs on x86 architecture (standard PCs, servers, or Eve-NG/GNS3 hosts). | | linux | Runs as a process on a Linux host (not bare metal). | | l3 | Layer 3 image – full routing capabilities (OSPF, EIGRP, BGP, etc.). | | adventerprisek9 | Advanced Enterprise feature set with K9 (cryptographic/security features enabled). | | ms | Mainline, Standard release (as opposed to early deployment). | | 155-2.t | Version 15.5(2)T – a Technology release with newer features. | | .bin | Binary executable file. | | | linux | Runs as a process
: IOU requires a license file named iourc . You must place this in the GNS3 VM settings. It typically contains a license key specific to the VM's hostname. 3. Installation Guide for EVE-NG | | ms | Mainline
: Upload the file to /opt/unetlab/addons/iol/bin/ .