Cisco Cisco IPS 4255 Sensor

When you enter the CLI, you are informed of your license status. For example, you receive the following 
message if there is no license installed:

***LICENSE NOTICE***

There is no license key installed on the system.

The system will continue to operate with the currently installed

signature set. A valid license must be obtained in order to apply

signature updates. Please go to http://www.cisco.com/go/license

to obtain a new license or install a license.

You will continue to see this message until you install a license key.

For more information on Cisco service contracts, see 

.

For the procedure for obtaining and installing the license key, see 

You must have a Cisco Services for IPS service contract for any IPS product so that you can download 
a license key and obtain the latest IPS signature updates. If you have a direct relationship with Cisco 
Systems, contact your account manager or service account manager to purchase the Cisco Services for 
IPS service contract. If you do not have a direct relationship with Cisco Systems, you can purchase the 
service account from a one-tier or two-tier partner.

When you purchase the following IPS products you must also purchase a Cisco Services for IPS service 
contract:

IDS 4215

IDS 4235

IDS 4250

IPS 4240

IPS 4255

IPS 4260

IPS 4270-20

AIM IPS

IDSM2

NM CIDS

When you purchase an ASA 5500 series adaptive security appliance product that does not contain IPS, 
you must purchase a SMARTnet contract.

SMARTnet provides operating system updates, access to Cisco.com, access to TAC, and hardware 
replacement NBD on site.