Cisco CSR 1000v Series Software Configuration Manual page 312

Voluntarily Rehosting the License to a New VM
See the "License to Initiate Transfer" figure below.
Figure 10: License to Initiate-Transfer Screen
Step 4
Specify the Source License.
Select the license with the original node-locked UDI for your system. See the "Source Rehost License" figure below .
If you changed the virtual UDI on the Cisco CSR 1000v using the request license new-udi command, the
Note
original node-locked UDI is invalidated on the router. Use the show license udi history command to obtain the
node-locked UDI for your license that is stored in the Cisco Software Licensing Tool records. You can also
verify the original node-locked UDI with the Cisco email confirmation you received when the license was
purchased.
Click Next.
Figure 11: Source Rehost License
Cisco CSR 1000v Series Cloud Services Router Software Configuration Guide
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Rehosting the Cisco CSR 1000v License