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Because it runs standard Cisco IOS, you can use this image to practice network automation frameworks like Netmiko, Ansible, or NAPALM via the virtual console lines.

Upload the file via SFTP to your EVE-NG server under the correct directory naming convention (e.g., /opt/unetlab/addons/qemu/vios-15.7.3-M3/ ). Ensure the final filename inside the folder matches the naming conventions required by the template (usually virtioa.qcow2 ).

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If your virtualization platform requires a .qcow2 file, you can convert the VMDK image using a standard Linux or command-line terminal with qemu-img installed. The syntax for conversion is as follows:

If your emulator performs better with QCOW2 files, use the qemu-img utility on your Linux host or terminal: Because it runs standard Cisco IOS, you can

If you are a student, leverage Cisco’s Academic Pricing. If you are a professional, consider the CML license a business expense—it is cheaper than a single physical router on eBay and infinitely more reliable.

: Images can be modified to include backdoors or malicious scripts. If your virtualization platform requires a

This file is a pre-packaged VMware virtual disk ( .vmdk ) containing the Cisco IOSv software image. It is designed for rapid deployment in virtualized labs, proof-of-concept tests, or network emulation environments (e.g., EVE-NG, VIRL, CML, VMware Workstation, or Fusion).

This is the official home for the vIOS router image. CML (formerly VIRL) packages this file natively to provide seamless, stable performance out of the box. 2. GNS3 (Graphical Network Simulator-3)

: The file extension for Virtual Machine Disk . This format is native to VMware but can be converted or directly read by other hypervisors like QEMU/KVM.