The Study of Real-Time Intrusion Detection and Security Auditing in Hybrid Wireless Network

Recently, wireless networks, using the IEEE 802.11 series standards, driven by the low entry cost of wireless networks and the relative ease of use are worldwide deployed. The use of a wireless transmission medium implies that the physical signal is easily accessed by malicious entities. Furthermore, the wireless medium cannot contained by the usual physical constraints of walls and doors, makes active intrusions through the wireless medium more easier. The most significant remaining obstacle to the proliferation of wireless networks is security concerns. In the project “The Intrusion Detection And Security Protection For 802.11 Wireless LAN” of previous year, the research result provided a working prototype of an intrusion detection system that can detect and respond to common wireless attacks within communication range based on 802.11b wireless environment. A prototype implementation of the wireless intrusion detection system is developed. That developed system is able to detection unauthorized usage of wireless networks, wireless-access-reconnaissance -driving activities, and prevent WEP cracking. In addition, the wireless intrusion detection system could alarm intrusion incident event to the network administrator in real time via short messaging service of GSM. Moreover, the proposed system is able to reveal every single step of the unauthorized activities with raw wireless packet rearrangement. This feature provides network administrators with more detailed and realistic insight concerning vulnerabilities in wireless network security that need to be fixed. However, the WIDS is operated on 802.11b wireless environment. The goal of this project is to last the research result and develop the intrusion detection and security auditing mechanisms against misuse and abnormal activities in heterogeneous 802.11a/b/g wireless environment. The research attempts to develop Security Operation Center to assist network administrators to managed heterogeneous wireless environments against threats.

Project ID:PB9408-5121
External Project ID:NSC94-2219-E182-001