Iosxrv-k9-demo-6.1.3.qcow2

Router(config)# interface GigabitEthernet0/0/0/0
Router(config-if)# ipv4 address 192.168.122.100 255.255.255.0
Router(config-if)# no shutdown
Router(config-if)# commit
Router(config-if)# end

Now you can SSH from your host: ssh -p 12203 cisco@localhost

Version 6.1.3 demo lacks support for:

The iosxrv-k9-demo-6.1.3.qcow2 is a learning tool for CLI and routing protocols, not a production router. It is old, unsupported, and limited, but still useful for:

Warning: Do not use this in any production or customer-facing environment. Also, ensure you have the legal right to use this image based on how you obtained it.

Last updated: 2025 — Note that IOS XR has evolved significantly (versions 7.x+ are current). Consider seeking newer demo images if possible. Iosxrv-k9-demo-6.1.3.qcow2

The iosxrv-k9-demo-6.1.3.qcow2 is a virtual image for the Cisco IOS XRv router, designed primarily for network simulation, training, and early-stage control plane testing. Unlike the resource-heavy IOS XRv 9000 (which is 64-bit and requires significant RAM), this 32-bit "classic" image is a lightweight alternative for lab environments like GNS3 and EVE-NG. Key Specifications & Requirements

System Architecture: Runs the 32-bit Cisco IOS XR software on a QNX microkernel.

Memory (RAM): Requires a minimum of 3 GB (3072 MB) to boot successfully. Storage: The QCOW2 image size is approximately 429 MB.

Interface Support: Supports Management Ethernet (Interface 0) and up to 127 Gigabit Ethernet data interfaces. Demo Mode Limitations Now you can SSH from your host: ssh

Because this is a "demo" image, it is intentionally "hamstrung" by Cisco to prevent production use:

Throughput Rate Limit: Data plane traffic is strictly throttled, typically to 2 Mbps.

User Access: May include hardcoded AAA users for demonstration purposes.

Feature Gaps: While it supports most control plane features (BGP, OSPF, ISIS), complex data plane features like certain L2VPN/MPLS forwarding scenarios may not work as expected. Performance & Usability Review IOS XRv - Cisco Modeling Labs v2.9 Version 6

The "k9-demo" part of the filename is where things get spicy. In Cisco nomenclature:

For a long time, the availability of this image was a grey area. It was freely distributed by Cisco for a time as a "virtual router" trial, then pulled, then re-released under different licensing schemes.

The "Demo" moniker meant it had limitations—usually performance throttling or a lack of certain high-end features. But for the vast majority of learners, it didn't matter. It had the CLI, it had the routing tables, and it behaved like the real thing.