To obtain a valid Cisco ASA activation key, follow these steps:
Using generated keys violates the Cisco End User License Agreement (EULA). This can lead to legal repercussions and the permanent blacklisting of your hardware. How to Get a Legitimate Activation Key cisco asa activation key generator
Malformed keys can corrupt the ASA’s license storage, forcing you to factory reset the device – a painful process for production firewalls. To obtain a valid Cisco ASA activation key,
After reload, verify with show version or show activation-key . cisco asa activation key generator