CA IPC does not appear in the Download Management list of products in https://support.ca.com.
How can CA IPC be downloaded?
The product CA IPC is bundled with CA Datacom/DB and CA Ideal. To download it follow these steps:
CA IPC will be one of the components that can be download for that product.
For IPC 15.0 it will look like this:
CA IPC for z/OS Release 15.0 Genlevel 0000
For IPC 15.1 it will look like this:
CA IPC FOR Z/OS 15.1 INC00