The device will accept it, though you are legally obligated to purchase it for production. Cisco’s Smart Licensing will simply track usage and report it.
Today, Cisco has transitioned almost entirely to Smart Licensing. This cloud-based system eliminates static keys. Instead, devices "check in" with the Cisco Smart Software Manager (CSSM). Because the authorization happens via a centralized cloud handshake, traditional offline license generators are largely obsolete for modern hardware like Catalyst 9000 switches or ISR 4000 routers. The Risks of Unofficial License Generators Cisco License Generator Tool
First, let’s define the term. A “Cisco License Generator Tool” (often referred to as a keygen, crack, or activator) is an unauthorized software application that claims to produce valid product authorization keys (PAKs) or license files for Cisco equipment. The device will accept it, though you are