I86bi_linuxl2-adventerprisek9-m_152_may_2018.bin
To run this image in GNS3 or EVE-NG, you generally need an iourc license file, which maps the specific hostname of your virtual machine to a license key.
Advanced versions like Rapid-PVST+ and MST. EtherChannel: LACP and PAgP bundling. VLAN Trunking: 802.1Q tagging and VTP. Layer 3 Switching: SVIs and routed ports.
Because it is an IOU image (not a full VM), it consumes significantly less RAM and CPU than standard IOSv or VIRL images, allowing for dozens of switches to run simultaneously on a single laptop. Common Technical Issues i86bi_linuxl2-adventerprisek9-m_152_may_2018.bin
adventerprisek9 (Advanced Enterprise Services with strong encryption support). IOS Version: 15.2. Release Date: May 2018. Use Cases & Requirements
The file i86bi_linuxl2-adventerprisek9-m_152_may_2018.bin is a specifically designed to run as a Layer 2 switch in a virtualized environment, typically on Cisco IOL (IOS on Linux) . To run this image in GNS3 or EVE-NG,
Latest L2IOU "failed code signing checks" · Issue #1484 - GitHub
Layer 2 (L2) switching (indicated by linuxl2 in the filename). VLAN Trunking: 802
Some versions of GNS3 may report "failed code signing checks" for this specific image. A known workaround on GitHub involves creating a symbolic link to the image in the project directory.