IOU requires a valid key to operate and that is where this module comes in. IOU stands for IOS on Unix and is a full IOS environment that can run as a Unix process. Specifically, ive copied CiscoIOUKeygen.py on the the VM and. Every mapping must get a unique pseudo ID as the destination, and every instance of the script must be started by adding this unique ID. The content of the licence file will be like this: license gns3vm The license is actually generated by the Keygen with the combination of the hostname and the hostid and ioukey of your VM. Iougen - IOU License Generator iougen is a python module/cli script that can be ran to generate IOU license keys. I cant get the keygen to work on the GNS IOU VMs as it appears they dont have Python loaded.

The script needs to know the real uid of the user, therefore you should invoke with sudo, from the same user that runs the IOU instances. If you, for example, have multiple NICs in your systems and therefore want multiple IOU interfaces to be forwarded, you must launch multiple instances of the script. Cisco Iou Keygen Python Compiler Run all your IOU instances as the same user, otherwise you end up with different netio subdirectories in /tmp, and your IOU instances cannot talk to each other. print(Cisco IOU License Generator - Kal 2011, python port of 2006 C version).