Cisco licensing

Since IOS 15 Cisco introduced a new model of licensing. Instead purchasing of correct IOS image with required feature sets now each IOS is complete set of features enabled by licences scheme. It eliminates uploading IOS to a device if the enhanced features are required.

Show current licences and IOS version

show version
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.2(4)M3, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Tue 26-Feb-13 02:11 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

r1-basic uptime is 11 minutes
System returned to ROM by reload at 10:54:53 UTC Sun Sep 1 2013
System image file is "flash0:c1900-universalk9-mz.SPA.152-4.M3.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command

r1-basic#sh license EULA
Feature name             EULA Accepted
------------             -------------
ipbasek9                 n/a
securityk9               yes
datak9                   yes
SSL_VPN                  no
ios-ips-update           no
hseck9                   n/a
WAAS_Express             no 

PLEASE  READ THE  FOLLOWING TERMS  CAREFULLY. INSTALLING THE LICENSE OR
<--- output omitted ----> 

r1-basic#sh license feature
Feature name             Enforcement  Evaluation  Subscription   Enabled  RightToUse
ipbasek9                 no           no          no             yes      no
securityk9               yes          yes         no             yes      yes
datak9                   yes          yes         no             yes      yes
SSL_VPN                  yes          yes         no             no       yes
ios-ips-update           yes          yes         yes            no       yes
hseck9                   yes          no          no             no       no
WAAS_Express             yes          yes         no             no       yes

Disable feature set

Preview available technology packages

r1-basic(config)#license boot module c1900 technology-package ?
  datak9      data technology
  securityk9  security technology

Disable the package of choice

r1-basic(config)#$t module c1900 technology-package securityk9 disable
% use 'write' command to make license boot config take effect on next boot  

r1-basic(config)#write
                   ^
 % Invalid input detected at '^' marker.

r1-basic(config)#end
r1-basic#write
Building configuration...
[OK]
r1-basic#reload

The following license(s) are transitioning, expiring or have expired.
Features with expired licenses may not work after Reload.
Feature: datak9                         ,Status: transition, Period Left: 8  wks 3  days
Feature: securityk9                     ,Status: transition, Period Left: 8  wks 3  days

Proceed with reload? [confirm]

Verify

r1-basic#sh license feature
Feature name             Enforcement  Evaluation  Subscription   Enabled  RightToUse
ipbasek9                 no           no          no             yes      no
securityk9               yes          yes         no             no       yes
datak9                   yes          yes         no             no       yes
SSL_VPN                  yes          yes         no             no       yes
ios-ips-update           yes          yes         yes            no       yes
hseck9                   yes          no          no             no       no
WAAS_Express             yes          yes         no             no       yes