Download the latest DKMS source for your NIC. Compile it into a .ko (kernel object) and copy it into the lib/modules/ directory within the extracted initrd.
: CML checks image integrity. Ensure that when writing your YAML definitions, you calculate the correct MD5 checksum of your patched .qcow2 file using md5sum filename.qcow2 and input it into the GUI/YAML accurately.
With your custom-patched ISO ready, it is time to introduce it to your CML controller. Method A: Uploading via the CML UI (Small Patches Only)
mkdir -p /tmp/cml_iso_mount mkdir -p /tmp/cml_iso_workspace sudo mount -o loop cml_refplat_base.iso /tmp/cml_iso_mount cp -R /tmp/cml_iso_mount/* /tmp/cml_iso_workspace/ sudo umount /tmp/cml_iso_mount Use code with caution. 2. Inject New .qcow2 Images and Definitions cisco cml refplat iso download patched
Downloading the correct files requires an active Cisco account and a valid license for CML-Personal, Personal Plus, or Enterprise.
To ensure lab stability and security, always source your Refplat ISO directly from Cisco. Downloading software from unverified third-party mirrors risks exposing your infrastructure to malware or corrupted node images. Steps to Download from Cisco Software Central Navigate to the portal.
, ensuring you rename the files as needed to avoid overwriting existing core images. Why You Shouldn't Use Unofficial "Patches" Download the latest DKMS source for your NIC
This guide provides a comprehensive, step-by-step walkthrough for locating official RefPlat images, applying patches, and custom-building ISOs to ensure your CML environment remains current. Understanding the CML RefPlat ISO
Cisco Modeling Labs (CML) relies on a to provide the virtual machine images—such as IOSv, NX-OSv, and ASAv—required to run network simulations. For users seeking a "patched" or most up-to-date version, it is essential to understand that Cisco typically releases cumulative ISO updates rather than individual patches for the ISO itself. Official Sources for CML Refplat ISO Downloads
Have a legitimate question about adding custom images to CML? Ask in the Cisco DevNet community – no patches required. Ensure that when writing your YAML definitions, you
: Standard Cisco routing and switching engines. NX-OSv : High-end data center operating system simulations. IOS-XRv : Service provider grade operating system. ASAv : Security and firewall appliance virtualization.
Look for "RefPlat Update" packages on the Cisco download site.