How to find that router doesn't have license -
asr1001#sh version
License Type: Default. No valid license found.
What to do next?
Step 1 - Login to router and collect the serial number
Router2#sh license udi
SlotID PID SN UDI
--------------------------------------------------------------------------------
*6 ASR1001 JAE16260026 ASR1001:JAE16260026
Step 2 - follow below link to create license and copy it to the router
http://bcnl01.cisco.com/twiki/bin/view/MCP/CiscoSoftwareLicensing#Installation_of_an_internal_lice
Step 3 - Install license
Router2#license install flash:license.lic
Installing licenses from "flash:license.lic"
Installing...Feature:crypto_8g...Successful:Not Supported
1/1 licenses were successfully installed
0/1 licenses were existing licenses
0/1 licenses were failed to install
Router2#cnf t
Router(config)# lice boot level adventer
Step 4- Reboot router and verify that it has license.
asr1001#sh version-
License Level: adventerprise
License Type: EvalRightToUse
Next reload license Level: adventerprise
If want more info, contact http://bcnl01.cisco.com/twiki/bin/view/MCP/InstallInternalLicense