These images are technically proprietary to Cisco and were originally intended for internal use; however, they are widely available in community-shared repositories like GitHub and various forum threads.
: Go to Edit > Preferences > IOS on Unix > IOU Devices . Click New , name the device, and browse to select the .bin file to upload it to the GNS3 VM. i86bi-linux-l3-adventerprisek9-15.4.1t.bin
Before learning how to use it, you must understand what it is. Cisco uses a strict naming convention for its IOS binaries. Let's break down i86bi-linux-l3-adventerprisek9-15.4.1t.bin : These images are technically proprietary to Cisco and
scp i86bi-linux-l3-adventerprisek9-15.4.1t.bin admin@<router-ip>:/disk0:/ name the device