In legitimate environments, you will almost never see demo in the official filename. Instead, Cisco provides time‑limited evaluation licenses separate from the image file itself.
Look for output like:
For official guides and latest updates, you can refer to the Cisco IOS XRv documentation configuration steps for a specific platform like EVE-NG or GNS3? Cisco IOS XRv - GNS3 5 Apr 2026 — iosxrvk9demo613qcow2