Techniques for Effective Wireless Snifﬁng Understanding Wireless Card Operating Modes Conﬁguring Linux for Wireless Snifﬁng Conﬁguring Windows for Wireless Snifﬁng Using Wireless Protocol Dissectors Useful Wireless Display
As of November 8, 2010, Manually entered IP addresses are no longer supported on campus if the device is capable of using DHCP. This is true for normal dynamically assigned IP's and Static IP's. All NEW devices added to the network must be set to receive their network address via DHCP (Dynamic Host Configuration Protocol). This is the default setting for campus PC and Mac workstations and most printers. No user action is anticipated. There is no change or downtime expected for the vast majority of campus workstations or devices. We have made great efforts to put exceptions in place...
Over the last ten years, the impact of wireless communications on
the way we live and do business has been surpassed only by the impact
of the Internet. Cell phones, pagers, and wireless Personal Digital
Assistants (PDAs) have become so commonplace in our lives that it is
easy to forget that ten years ago, they were a rarity.
AD HOC NETWORKS: Technologies and Protocols is a concise in-depth treatment of various constituent components of ad hoc network protocols. It reviews issues related to medium access control, scalable routing, group communications, use of directional/smart antennas, network security, and power management among other topics. The authors examine various technologies that may aid ad hoc networking including the presence of an ability to tune transmission power levels or the deployment of sophisticated smart antennae. ...
Topology Control in Wireless Ad Hoc and Sensor Networks makes the case for topology control and provides an exhaustive coverage of TC techniques in wireless ad hoc and sensor networks, considering both stationary networks, to which most of the existing solutions are tailored, and mobile networks. The author introduces a new taxonomy of topology control and gives a full explication of the applications and challenges of this important topic.
Wireless Sensor Networks hold the promise of delivering a smart communication
paradigm which enables setting up an intelligent network capable of handling
applications that evolve from user requirements. With the recent technological
advances of wireless sensor network, it is becoming an integral part of our lives.
However, due to the nature of wireless sensor networks, researchers face new
challenges related to the design of algorithms and protocols.
Wireless Sensor Networks (WSNs) can be defined as a self-configured and infrastructure-less wireless networks to monitor physical or environmental conditions, such as
temperature, sound, vibration, pressure, motion or pollutants and to cooperatively pass
their data through the network to a main location or sink where the data can be observed
and analysed. A sink or base station acts likean interface between users and the network.
One can retrieve required information from the network by injecting queries and gathering
results from the sink.
This text examines all aspects of Wireless Application Protocol (WAP), particularly the hands-on development of WAP applications - an important area with regard to the success of WAP in the consumer marketplace. The book explains both the technical details behind WAP as well as the critical business issues related to its implementation.
If you want to deploy your own wireless network - at home or at the office you must first understand the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start. This updated edition covers everything you need to know about integrating wireless technology into your current infrastructure.
Mobile telecommunications emerged as a technological marvel allowing for access to
personal and other services, devices, computation and communication, in any place and
at any time through effortless plug and play. This brilliant idea became possible as the
result of new technologies developed in the areas of computers and communications that
were made available and accessible to the user.
Since the fi nal decades of the twentieth century, data networks have known steadily growing
success. After the installation of fi xed Internet networks in many places all over the planet
and their now large expansion, the need is now becoming more important for wireless access.
There is no doubt that by the end of the fi rst decade of the twentieth century, high-speed wireless
data access, i.e. in Mb/s, will be largely deployed worldwide.
Wireless e-business allows people to communicate and transact in business via
wireless technology, without physical connectivity, such as wires or cabling.
Wireless e-business uses many devices, including mobile phones, pagers, palmpowered
personal computers (PCs), pocket PCs, laptop computers, and other mobile
devices or devices connected to the wireless networks
A wireless ad-hoc network is a wireless network deployed without any infrastructure. In
such a network, there is no access point or wireless router to forward messages among the
computing devices. Instead, these devices depend on the ad-hoc mode of their wireless network
interface cards to communicate with each other. If the nodes are within the transmission
range of the wireless signal, they can send messages to each other directly. Otherwise,
the nodes in between will forward the messages for them. Thus, each node is both an end
system and a router simultaneously....
In 1991, Mark Weiser described his vision of an emerging world of pervasive,
embedded computation. He predicted “a physical world that is richly and invisibly
interwoven with sensors, actuators, displays, and computational elements, embedded
seamlessly in the everyday objects of our lives and connected through a continuous
Outline of lecture 8: bluetooth has general characteristics, piconets & scatternets, basic access scheme, baseband (mac layer), higher layer protocols, profiles and versions; zigbee has zigbee vs. IEEE 802.15.4, architecture & topologies, IEEE802.15.4 MAC layer.
A rush solution to the security problems of WEP
Based on 802.11i (official version)
Encrypt and authenticate MSDUs: counter mode-CBC MAC protocol with AES-128
Authenticate STAs: 802.1X
Initialization vectors transmitted in plaintext are no longer needed to generate per-frame keys
But most of the existing Wi-Fi WPA cards cannot be upgraded to support 802.11i
Radio based communication, open air
The attacker, having a radio transmitter and receiver with the same radio frequency of the underlying wireless network, can easily:
Intercept wireless data
Connect his computing devices to a nearby wireless network
Inject new packets to an existing wireless network
Jam a particular wireless channel using a jamming device
Implement encryption algorithms, authentication algorithms, and integrity-check algorithms at the data-link layer
Provide network access with wired equivalent privacy
Higher-layer protocols and applications can be used ...
Chapter 3 - Underlying technology. Upon completion you will be able to: Understand the different versions of wired Ethernet, understand wireless Ethernet, understand the types of point-to-point WANs, understand the types of switched WANs, especially ATM, differentiate between repeaters, bridges, routers, and hubs.
Upon completion you will be able to: Understand the different versions of wired Ethernet, understand wireless Ethernet, understand the types of point-to-point WANs, understand the types of switched WANs, especially ATM, differentiate between repeaters, bridges, routers, and hubs.