After downloading the i86bi-linux-l2-adventerprisek9-m-152-may-2018.bin file, follow these steps to install it on your ASR1000 series router:
Cisco IOU (IOS on UNIX) was initially designed internally for Cisco engineers to test IOS software on x86 platforms. Cisco does not officially license or sell these IOU images to the general public or for commercial use. Consequently, IOU images cannot be legally purchased or downloaded from Cisco's official software portal for personal use.
While the May 2018 image is popular, the community often debates which IOU images are the most stable. i86bi-linuxl2-adventerprisek9-m-152-may-2018.bin download
Reviews from community forums like GNS3 Community and Cisco Community highlight several limitations:
Ensure you are using the GNS3 Virtual Machine (VM), as IOU images require a native Linux environment to execute seamlessly. While the May 2018 image is popular, the
. Many engineers prefer this 15.2 (May 2018) version because it successfully simulates PVLAN behavior (Promiscuous, Isolated, and Community ports) better than standard IOSvL2 images. Key Specifications for This Image L2 Switch (Layer 2). 15.2 (CML_NIGHTLY_20180510). d704b68c5f4c4f92e56b754b49b92012 File Size: Approximately Resources:
Using this IOL image in is slightly different because GNS3 historically uses Dynamips for routers. However, modern GNS3 supports "IOU" (IOS on Unix) integration: Many engineers prefer this 15
Some users report duplex issues with older 15.2 images. This May 2018 build is generally more stable, though you should verify that your virtual interfaces aren't defaulting to half-duplex. Legal Note:
Because of licensing restrictions, these files are typically shared within the networking community through educational repositories, study groups, or public sharing sites. You can frequently find this exact May 2018 build hosted in community archives like the Archive.org IOU Directory or shared in academic repositories like the KEMT FEI TUKE Repository .
To use this image in your lab, you generally follow these steps: Transfer the file to your simulator's image directory (e.g., /opt/unetlab/addons/iol/bin/ in EVE-NG). Permissions: Set the correct execution permissions (e.g., or using a fixpermissions script). IOU images require a license file containing a host-specific license key to run. Integration:
strings) to avoid path length errors in Linux-based lab servers.