Iou Gns3 ((install)) Jun 2026

IOU images are proprietary, not officially distributed by Cisco. Most users acquire them from unofficial sources, which is legally gray and unsupported.

To configure devices, follow these steps: iou gns3

While dynamips relies on the older NM-ESW16 module for switches, IOU provides robust L2 and L3 switching functionality that closely mirrors real Cisco hardware. IOU images are proprietary, not officially distributed by