Configuring Intrusion Detection Settings The Intrusion Detection System (IDS) greatly increase the security capabilities of the SonicWALL security appliance by enabling it to recognize and even take countermeasures against the most common types of illicit wireless activity. IDS consists of three types of services, namely, Sequence Number Analysis, Association Flood Detection, and Rogue Access Point Detection. This section describes how to configure group level and unit level intrusion detection settings (IDS) for wireless SonicWALL appliances.