Wireless mesh networks are very common both for organizations and individuals. Many laptops, computers have wireless cards preinstalled for buyer. However a wireless networking has many security issues. An Intrusions Detection System aim to detect the different attacks against network and system. An Intrusion Detection System should be capable for detecting the misuse of the network whether it will be by the authenticated user or by an attacker. They detect attempts and active misuse either by legitimate users of the information systems or by external. The present paper deals with cross layer based Intrusion Detection System for wireless domain - a critical analysis. The present paper deals with role of cross layer based intrusion detection system for wireless domain.