Hi,
Although the sensor functions without the license key, you must have a license key to obtain signature
updates. To obtain a license key, you must have the following:
• Cisco Service for IPS service contract (Contact your reseller, Cisco service or product sales to purchase a contract).
• Your IPS device serial number
To find the IPS device serial number in IDM, choose Configuration > Sensor Management >
Licensing., or in the CLI use the show version command.
• Valid Cisco.com username and password
Trial license keys are also available. If you cannot get your sensor licensed because of problems with your contract, you can obtain a 60-day trial license that supports signature updates that require licensing.
You can obtain a license key from the Cisco.com licensing server, which is then delivered to the sensor.
Or, you can update the license key from a license key provided in a local file. Go to www.cisco.com/go/license and click IPS Signature Subscription Service to apply for a license key.
Regards,
