Advanced Enterprise Services is the specific feature set included in the i86bi-linuxl3-adventerprisek9-m2.157-3.May_2018.bin
Cisco IOL (IOS on Linux) image. This "L3" (Layer 3) image is a virtualized 64-bit binary used primarily in network simulation environments like Advanced Enterprise Services
package provides the most comprehensive set of Cisco IOS features, combining several major capability sets: Core Feature Capabilities Routing Protocols: Full support for BGP, OSPF, EIGRP, RIP, and IS-IS. MPLS Support:
Advanced Multiprotocol Label Switching features, including MPLS VPNs, Traffic Engineering (TE), and LDP. Complete dual-stack support and IPv6 transition mechanisms.
Comprehensive VPN support (IPsec, GETVPN, DMVPN), firewall capabilities, and advanced encryption (K9 indicates strong cryptography). Enterprise Features:
Quality of Service (QoS), Multicast, and Network Management Agent support like WSMA. Cisco Systems Image Specifics Software Release: This image is based on Cisco IOS Release 15.7(3)M2 , which was officially released around May 2018. Binary Type: IOL (IOS on Linux)
binary, meaning it runs as a native Linux process rather than requiring a full hypervisor for hardware emulation. Architecture:
The "i86bi" prefix confirms it is compiled for x86 architecture (64-bit). Cisco Systems CLI commands i86bi linuxl3-adventerprisek9-m2 157 3 may 2018.bin
to verify these features on your running instance, or do you need help generating the license to start the image? Cisco IOU L3 - GNS3 Mar 15, 2569 BE —
Cisco IOU L3 i86bi_LinuxL3-AdvEnterpriseK9-M2_157_3_May_2018.bin : 185 MB | Cisco IOL (IOS on Linux) - - EVE-NG
i86bi-linux-l3-adventerprisek9-m2.157-3.May_2018.bin Cisco IOU (IOS on UNIX) image designed for Layer 3 (router) emulation . It is widely used in network simulation environments like for training and lab testing. Key Specifications Cisco IOU (also known as IOL - IOS on Linux). IOS 15.7(3)M2, released in May 2018. Feature Set: Advanced Enterprise Services adventerprisek9
), the most comprehensive Cisco IOS feature set including full routing, security, and advanced services. Architecture: 32-bit (i86bi). Capabilities and Limitations Layer 3 Focus: router image
. While it may support some basic switching commands, it typically lacks full VLAN, SVI, and Spanning Tree functionality found in dedicated Layer 2 (L2) images. Internal Origin:
These images were originally developed by Cisco for internal testing and are not officially available for purchase by the general public. Resource Efficiency:
IOU images are extremely lightweight compared to full virtual machine images (like CSR1000v), allowing you to run hundreds of nodes on standard hardware. Common Use Cases CCNP/CCIE Labbing: Advanced Enterprise Services is the specific feature set
Ideal for studying complex routing protocols like BGP, OSPF, EIGRP, and MPLS. Integration: Can be uploaded to under the path /opt/unetlab/addons/iol/bin/ or added to GNS3 as an IOU appliance. Requirement:
The i86bi-linuxl3-adventerprisek9-m2.157-3.may.2018.bin image is a masterpiece of network emulation engineering. It offers enterprise-grade routing features at a fraction of the hardware cost—but its power is shadowed by legal restrictions.
Final recommendations:
By respecting licenses, you ensure that Cisco continues to develop tools like IOL. And with the legal copy in your lab, you can build a 100-node MPLS VPN topology on a single laptop—something that was pure science fiction just a decade ago.
Disclaimer: This article is for educational purposes. The author does not host, provide links to, or encourage downloading copyrighted Cisco images. Always obtain software directly from Cisco Systems or authorized resellers.
At its core, this .bin file is a Cisco IOS (Internetwork Operating System) image compiled specifically to run as a user-space process on a Linux host. Unlike physical router firmware that interacts directly with ASICs, this image emulates the control plane of a Cisco Layer 3 switch or router using a technology often called IOU (IOS on Unix) or IOL (IOS on Linux).
The specific version 157-3.may.2018 represents a Cisco IOS release from the 15.7(3) train, dated around May 2018. This places it in the "modern legacy" category—old enough to be stable and widely documented, yet recent enough to support essential enterprise features like MPLS, VRF, and advanced BGP. Conclusion: A Vital Tool for Serious Studies The
If you have spent any time building Cisco virtual labs using EVE-NG, GNS3, or PNETLab, you have likely encountered a file with a very long, descriptive name. One of the most common and stable images for Layer 3 routing studies is the i86bi linuxl3-adventerprisek9-m2 157 3 may 2018.bin.
But what exactly is this file? Is it the right one for your CCIE or CCNP lab? Let's break down the nomenclature, its use cases, and its limitations.
Before you rush to load this into your topology, there are a few "gotchas" regarding the i86bi images:
Ethernet0/0 instead of GigabitEthernet0/0. While this doesn't affect routing logic, it can be annoying when copy-pasting scripts.| Image Name | Use | L2/L3 | Crypto | Memory Model |
|------------|-----|-------|--------|---------------|
| i86bi-linuxl2-adventerprisek9-15.7(3).bin | Basic switching | L2 | k9 | m2 |
| i86bi-linuxl3-upk9-15.6(2)T.bin | Provider features | L3 | k9 (universal) | m |
| i86bi-linuxl3-adventerprisek9-m2.157-3.May.2018.bin | Full enterprise routing | L3 | k9 | m2 |
| iosv-15.6.2T.bin (vIOS) | QEMU-based router | L3 | k9 | N/A (higher resource) |
Why choose this over vIOS?
Why NOT choose it?
Cause: Wrong L2/L3 usage (trying to switch on this image) or insufficient RAM.
Fix: Increase RAM to 384 MB or higher.