When a new router is shipped, it comes preinstalled with the software image and the corresponding permanent licenses for the customer-specified packages and features.
The router also comes with the evaluation license, known as a temporary license, for most packages and features supported on the specified router. This allows customers to try a new software package or feature by activating a specific evaluation license. If customers want to permanently activate a software package or feature on the router, they must get a new software license.
The figure shows the three steps to permanently activate a new software package or feature on the router.