The Cisco ASA FirePOWER module provides network visibility, policy enforcement, and advanced threat protection across many organizations and the entire attack continuum. This chapter starts with an introduction to the Cisco ASA FirePOWER module. It explains the difference between inline and promiscuous (monitor-only) deployment modes. This chapter also covers the different Cisco ASA FirePOWER management options and provides guidance on what models to use, based on network size and demands. You have also learned about the Cisco ASA FirePOWER Services licensing and compatibility issues with other Cisco ASA features. This chapter also provides a deep dive into the Cisco ASA and the Cisco FirePOWER module packet-processing order of operations. You have learned how the Cisco ASA FirePOWER module behaves and is deployed in failover and clustering configurations. Several deployment scenarios are covered, including deploying Cisco ASA FirePOWER Services at the Internet Edge, in site-to-site and remote-access VPN scenarios, and in the data center. At the end of the chapter, you learned a few details about the FTD software and prerequisites prior to installation on a supported Cisco ASA model.