: To use this image, it's uploaded to a specific path on the EVE-NG server: /opt/unetlab/addons/iol/bin/ . A vital final step is running the fix permission script /opt/unetlab/wrappers/unl_wrapper -a fixpermissions to ensure the file can be executed correctly.

IOL images require a valid license file named iourc , placed in the same directory as the image. The license contains a line specific to the server's hostname.

Because it is an "Advanced Enterprise" image, it supports complex configurations like MPLS, RSVP, and advanced QoS that lighter images might lack.