Based on the filename provided (c86bi_linuxl3-adventerprisek9-m2.157-3.M.bin), this is an IOS 15.7(3)M Enterprise Layer 3 image for the Cisco 7200 series router (emulated via GNS3).
Posted by: [Your Name] | Network Engineering i86bilinuxl3adventerprisek9m21573may2018bin portable
If your goal is strictly learning networking, FRR or VyOS on a USB Linux stick gives you real routing without legal or security issues. i86bilinuxl3adventerprisek9m21573may2018bin portable
Have you hit any odd bugs with this specific build? Drop a comment below. i86bilinuxl3adventerprisek9m21573may2018bin portable