There is typically no need to duplicate rules between the prefilter and Access Control Policy (ACP). The prefilter in Cisco FTD is an early stage in the packet processing pipeline, and its purpose is to quickly drop obviously unwanted traffic based o...

Let me address each question:   1. Adding an FMC to CDO (CDO) When adding a Firepower Management Center (FMC) to Cisco Defense Orchestrator (CDO), the minimum commands needed on the firewall may vary depending on your specific setup and requirements....