Description:The Cisco Intrusion Detection Sensor (IDS) looks at traffic more deeply than the firewall and operates proactively by blocking or changing access-lists on the PIX firewall or Cisco routers on the fly. In order for the Cisco IDS sensor to do its job, the IDS sensor and management software must be installed and configured properly. This is what we are striving to accomplish in this book—the correct way to install, configure, and use the Cisco IDS sensor and management tools provided to you.