You cannot extend the evaluation license. To continue to use Cisco ISE services after the 90-day Evaluation License expires, you must install a Base, Base and Advanced, or Wireless license package for Cisco ISE. License files are based on a combination of the Cisco ISE hardware ID and Product Authorization Key (PAK).
The 90-day duration is based on the Cisco ISE system clock. As the Evaluation License approaches the end of its 90-day period, the Cisco ISE system generates an alarm that prompts you to download and install a valid license. When the Evaluation License expires at the end of its 90-day period, the Admin portal prompts you to install a valid production license. After that, you must enter a base or advanced license through the Administrator user interface to keep both the Guest and Sponsor portals from returning an HTTP 503 error response, reporting to users that the service is not available.
Although the Evaluation License allows you to provide support for both wired and wireless users, purchasing and applying a Wireless License option cuts off support for any wired users that you may have been supporting during the evaluation period.
There is no possiblity of extending the Evaluation license as is. Please reach out to your cisco account team who assisted you in installing ISE initially and see if they can assist you on extending your licenses.
Other than getting a new license file with the date extension, we cannot modify any existing licenses from the application level.
While it is true that you cannot extend an evaluation license, you can work with your Partner or Account Manager to request a NEW evaluation license.
This is the ONLY way to extend the evaluation period.
Seeing that you are running v1.1.0, you may want to upgrade. Significant features have been added in 1.1.1 and another huge leap was made in 1.2. Your Partner or Account Manager can help with this, as well.
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