The Get Latest Maintenance Task for CA IPC 15.1 fails with:
The product CA IPC - MVS at release 15.1 is not available for the following site IDs:
Release : 6.0
Component : Chorus Software Manager
The reason for the licensing error message is because the entitlement for the CA IPC product comes with your CA Datacom/DB Product entitlement, therefore you must perform the Get Latest Maintenance Task from under CA Datacom/DB 15.1, not CA IPC.
When you perform the Get Latest Maintenance Task from under CA Datacom/DB 15.1 it will acquire maintenance for all of the product components that are included in the Datacom/DB package, such as CA IPC.