We currently do not document support for intrusion detection and the following is noted in our documentation:
"Except for anti-virus, system management, and time-synchronization software, do not install third-party software, especially third-party network monitoring software, on the same server as
CA Performance Management
components. Third-party software can interfere with the monitoring abilities of the CA system, and could void the warranty.
If you install third-party software on a CA system, CA Support might ask you to uninstall this software before troubleshooting an issue on the server."
The best course of action would be to log an enhancement and possibly work with your account team to determine if your intrusion detection would be supported