After you install the CDC Replication Engine for Db2® for i

There are tasks that you must perform after installing CDC Replication.

Configuring the CDC Replication Engine for Db2 for i to use TCP/IP
After installing CDC Replication, you need to allocate a TCP/IP service for communication with Management Console that you have installed on each client workstation.
Verifying the configuration of your Domain Name Server (DNS)
If you are using a local host table as the hostname, then you need to verify the DNS configuration to ensure that the local host table is searched for as the hostname.
Verifying the journal
You need to verify that all user profiles, including the D_MIRROR user profile, that start mirroring jobs have sufficient authorities to access journals and journal receivers that are used by CDC Replication.
Verifying the journal receivers
You need to verify that all user profiles, including the D_MIRROR user profile, that start mirroring jobs have sufficient authorities to access journals and journal receivers that are used by CDC Replication.
Enabling TLS Encryption for communication between source and target
The topic includes the procedure of enabling Transport Layer Security (TLS) for CDC for IBM i between Engine-to-Engine communication. The feature is available in 11.4 interim fix 14 and onwards.
Starting the subsystem and the listener
After installing CDC Replication, you must start the subsystem and the listener.
Securing the CDC Replication Engine for Db2 for i product library (Optional)
You can authorize the use of the CDC Replication product library to specific users. The default name of this library is DMIRROR.
Scheduling CDC Replication Engine for Db2 for i start up and shut down (Optional)
You can schedule CDC Replication to start up or shut down automatically at scheduled times on System i. You can add an entry to the System i job scheduler using the ADDJOBSCDE (Add Job Schedule Entry) command.