I86bi-linux-l2-adventerprisek9-15.2d.bin -
Although limited to L2, version 15.2d includes support for basic VXLAN and LISP control plane elements, making it useful for prototyping Cisco's Software-Defined Access (SDA) underlay.
| Requirement | Detail |
|-------------|--------|
| Host OS | Linux (or Windows/macOS via GNS3/EVE-NG VM) |
| CPU | x86_64 with VT-x/AMD-V (for KVM) |
| RAM | ~512 MB per instance (can be less for small labs) |
| GNS3/EVE-NG | Requires IOL (IOS on Linux) support + license file (CiscoIOLLicense) | i86bi-linux-l2-adventerprisek9-15.2d.bin
No license? The image may still boot but will complain about missing license and may limit features or reboot periodically. Although limited to L2, version 15
While this image is excellent, newer options exist: No license
| Image | Features | Resource Use | Best For | | :--- | :--- | :--- | :--- | | IOSv-L2 (15.2(4)E) | More VLANs, better L2VPN | Medium (512 MB RAM) | Modern CCNA labs | | vIOS-L2 (15.2(4)E5) | Day-2 operations, RESTCONF | Medium-High | Automation testing | | Open vSwitch (OVS) | Open source, high performance | Very Low | SDN/OpenFlow experiments | | Packet Tracer | Limited CLI, no real protocols | Extremely Low | Absolute beginners |
Recommendation: Use 15.2d for legacy exams (ICND2 200-105) or low-RAM servers. For new CCNP Enterprise (350-401 ENCOR), switch to vIOS-L2 or CML images.