Wireless LANs are open and are vulnerable to various attacks. Techniques available to prevent Wireless LANs from these attacks are not comprehensive. In this paper we discuss the drawbacks of the existing security mechanisms and we provide a security architecture which uses Mobile agents as a security facilitator. Using this architecture, users have freedom to choose from a variety of encryptio...

The use of 802.11 wireless local area networks (LANs) is growing at a phenomenal rate. However, numerous flaws have been discovered in WEP, and studies have shown that many wireless LANs are installed with their default settings. These are soft targets for war drivers, who drive around with laptops and 'cantennas' locating insecure wireless LANs. While it is known that wireless LANs experience ...

The emergence of portable computing devices such as laptops, palmtops and personal digital assistants (PDAs) has fuelled the demand for mobile connectivity and hence, led to the development of wireless local area networks (LANs). Wireless LANs offer users increased mobility and flexibility compared with traditional wired networks, and may be classified as either infrastructure wireless or ad ho...

The security of wireless LANs has been a source of concern for businesses and individuals who are aware of its advantages due to its flexibility. With the increase in the use of wireless LANs for enterprises and homes, where information assets are shared continually, security is of the essence. With the increase in ecommerce and eservices, there is the risk of identity and credit card theft. Th...

Wireless LANs with their increased data rate become an attractive technology for connecting mobile users to the Internet. Efficient deployment of wireless LANs will require the ability to extend the wireless LANs coverage without the need to deploy a very large number of access points. Mesh based wireless LANs are an attractive solution to this problem. These networks extend the wireless LAN co...

This paper presents an overview of wireless local-area networks (LANs) and wireless personal area networks (PANs), with emphasis on the two most popular standards: IEEE 802.1 1, and Bluetooth. While there are many such surveys in the current literature and online, we attempt here to present wireless LANs and PANS in a unified fashion as a viable alternative to wired LANs, while stressing the re...

With the growth of wireless technologies rapidly, there will be coexist heterogeneous wireless LANs environment within a few years. For example, there may be coexist current wireless LAN systems based widely available 802.11 and a wireless LAN system based proprietary wireless LAN standard with different AAA mechanisms such as RADIUS and Diameter. In case of being coexisted the heterogeneous wi...

The proliferation of IEEE 802.11-based wireless LANs opens up avenues for creation of several tetherless and mobility oriented services. Most of these services, like voice over WLAN, media streaming etc., generate delay and bandwidth sensitive traffic. These traffic flows require undisrupted network connectivity with some QoS guarantees. Unfortunately, there is no adequate support built into th...

This paper presents the design and implementation of WIRE1x. The WIRE1x is an open-source implementation of IEEE 802.1x client (supplicant) developed by the Wireless Internet Research & Engineering (WIRE) Laboratory. The IEEE 802.1x standard defines a port-based network access control to authenticate and authorize devices interconnected by various IEEE 802 LANs. The IEEE 802.11i also incorporat...