| Image Name | Description | Legal Source | |------------|-------------|---------------| | | IOSv version 15.4(3)M | Cisco CML Personal | | vios-adventerprisek9-m | VIRL IOSv with MPLS | Cisco VIRL | | csr1000v | Cloud Services Router (IOS XE) | Cisco trial (60 days) | | xrv9k | IOS XR virtual router | Cisco DevNet |
But what exactly is this image, and why is it still so popular in the GNS3 and EVE-NG communities? Let's break it down. What is this Image? The filename tells a specific story about its capabilities: i86bi-linux
As an unofficial image, it is not supported by Cisco. However, there is a wealth of community-driven knowledge:
ssh root@your-eve-ng-ip mkdir -p /opt/unetlab/addons/qemu/i86bi-linux-adventerprisek9-ms.154-1.t-antigns3 mv /opt/unetlab/addons/qemu/i86bi-linux-adventerprisek9-ms.154-1.t-antigns3.bin /opt/unetlab/addons/qemu/i86bi-linux-adventerprisek9-ms.154-1.t-antigns3/ i86bi-linux-adventerprisek9-ms.154-1.t-antigns3.bin
Router> enable Router# config terminal Router(config)# hostname R1 Router(config)# interface gigabitethernet0/0 Router(config-if)# ip address dhcp Router(config-if)# no shut Router(config-if)# exit Router(config)# line vty 0 4 Router(config-line)# password cisco Router(config-line)# login Router(config-line)# exit Router(config)# enable secret cisco
If you have legal access, here’s how to set it up:
This signifies that it is a "Mainline" or "Special" release, often indicating it is a software-based image rather than one tied to specific physical hardware. | Image Name | Description | Legal Source
: Denotes the Cisco IOS software release version—specifically version 15.4(1)T
Because IOL was originally created for Cisco's internal engineering use, getting it up and running requires a few system preparations. 1. Fulfilling the 32-Bit Dependency
: IOU images require a license validation file named iourc containing a host-specific license key. Without this file, the router binary will crash immediately upon booting with a "License index error." The filename tells a specific story about its
Upgrade procedure (high-level)
Because the image runs as a Linux process under QEMU/KVM, its packet forwarding performance is entirely . In GNS3/EVE-NG:
This software is the proprietary property of Using it in emulators for learning and certification is a widely accepted industry practice. However, you should not distribute the .bin file itself, as that would violate Cisco's copyright. Always use such files for personal, educational purposes in a lab environment.