In a lab setting, this version is known for being relatively efficient with RAM (requiring roughly 3GB to 4GB to boot comfortably). How to Deploy the QCOW2 Image
The disk format (QEMU Copy-On-Write), natively used by KVM-based hypervisors. Csr1000v-ucmk9.16.12.1b-serial.qcow2 REPACK
While "REPACK" images are often used for education, they still operate under Cisco's licensing terms. Without a valid license, the throughput is typically capped at 100Kbps, which is sufficient for learning commands but not for performance testing. In a lab setting, this version is known
Advanced features including TrustSec, Zone-Based Firewall (ZBFW), and robust VPN support (DMVPN, FlexVPN). Without a valid license, the throughput is typically
On your EVE-NG server, create a folder named csr1000vng-16.12.01b inside /opt/unetlab/addons/qemu/ .
Upload the file and rename it to virtioa.qcow2 . This is the standard name EVE-NG looks for to boot the disk.
Run the EVE-NG wrapper script ( /opt/unetlab/wrappers/unl_wrapper -a fixpermissions ) to ensure the emulator has rights to execute the file.