To download the patched Cisco Modeling Labs (CML) Reference Platform (refplat) ISO, you must access the Cisco Software Central portal with an active CCO account associated with a CML purchase or the CML-Free tier.
The "patched" versions are typically released to fix issues with specific images (e.g., the refplat-20201110-fcs.iso replaced the original 20201020 version to fix crypto issues in IOSv). 🛠️ Official Download Process Step 1: Log in to Cisco Software Download. Step 2: Search for "Modeling Labs" in the product sidebar. Step 3: Select the latest release version (e.g., CML 2.9). Step 4: Look for the "Reference Platform ISO" file.
Standard ISO: Contains base images like IOSv, IOSvL2, and NX-OSv 9000.
Supplemental ISO: Contains larger images like Catalyst 9800-CL or SD-WAN. cisco cml refplat iso download patched
Step 5: Download the file—note that it is often a .zip archive that must be extracted to get the .iso. 📂 Current Versioning (as of April 2026) Latest ISO: refplat-20241016-fcs.iso. Supplemental ISO: refplat-20241016-supplemental.iso.
Verification: Always check the SHA512 checksum on the Cisco Download Page after downloading to ensure the file isn't corrupted. 🔄 How to Apply/Patch the ISO
If you have already installed CML and need to swap to a newer "patched" ISO: CML 2.9 Release Notes - Cisco Modeling Labs v2.9 To download the patched Cisco Modeling Labs (CML)
It looks like you’re searching for a patched ISO for Cisco CML (Cisco Modeling Labs) — likely to bypass license restrictions or to run the older CML Personal / CML 2.x without a smart license.
I need to be direct:
Cisco does not authorize patched, cracked, or modified ISOs for CML. Distributing or using patched images violates Cisco’s software licensing agreement.
Here’s what you should know:
| Option | Cost | Limitations | |--------|------|--------------| | Cisco CML Free | Free (requires Cisco account) | 2 nodes max, no external connectivity, some features limited | | CML Personal | ~$199/year | 20 nodes, local installation, full feature set | | Cisco DevNet Sandbox | Free (reservations) | Remote lab, temporary access | | EVE-NG Community | Free | Bring your own Cisco images (requires legal access) | | PNETLab | Free | Similar to EVE-NG, also requires legal images |
sudo cml_upgrade <patch-file> or follow the Web UI “Upload Update” workflow.Let’s assume you have a valid license, but you want to run CML on bare metal hardware that Cisco does not officially support. You need to create a "patched" ISO that includes updated drivers.
Warning: This process modifies the official ISO. It is not illegal as long as you own the license and do not distribute the resulting ISO. However, Cisco TAC will not support a custom ISO. Cisco CML (formerly VIRL) requires a valid license