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Topic: WLAN


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In the News (Wed 11 Nov 09)

  
 Standards Based Wireless Networking with Linux
By leveling the playing field and introducing multi-vendor installations, WLAN vendors will be forced to look at improving throughput and adding more management tools to their products in an effort to differentiate themselves from their competitors.
A frame being sent from a wired node to a WLAN station is first received by the Portal, then sent to the appropriate AP, and the AP forwards the frame to the destination WLAN station.
It is our sincere hope that WLAN product vendors will use this project as a template for their own products, thus developing the Open Source implementation into a standard defining those elements the IEEE chose not to define.
www.linux-wlan.com /writings/std-wlan-linux/stdwlan-whitepaper.html   (3701 words)

  
 Wireless Architecture WLAN
WLAN Standards and Wireless Gateways: Making the right choices to secure and manage your WLAN (Bluesocket)- This paper tries to explain in simple terms where the most talked about WLAN standards came from, what they aim to do, and what the implication is for an organization that intends to install or upgrade a WLAN.
WLAN Switching: Managing Wireless Access Points (Certification Magazine)- With the introduction of the "wireless switch," network administrators will be able to scale up their WLANs, while at the same time handling issues around security, management, cost, reliability and mobility.
WLAN: An invisible alternative (Network Magazine India)- A WLAN solution is an attractive alternative, especially in places where it's difficult to install a wired LAN infrastructure.
wireless.ittoolbox.com /topics/t.asp?t=379&p=379&h1=379   (6003 words)

  
 White Paper: Architecting Your 802.1x-Based WLAN Deployment Using Odyssey™ and Steel-Belted Radius®   (Site not responding. Last check: 2007-10-08)
First, the ability of a WLAN user to connect to the network is dependent on the status of the link between the distributed networks and the central site or operating hub.
Beyond being able to safely authenticate WLAN users against a Windows database and set up their secure connections, Odyssey Server can communicate with Steel-Belted Radius to authenticate WLAN users in branch offices or distributed departments against a central security infrastructure which may or may not be based on Windows.
WLAN security based on the IEEE security standard 802.1x and strong authentication methods such as EAP-TTLS is an extremely scalable, distributable, and cost-effective way to move toward widespread deployment of WLAN access across your enterprise.
www.funk.com /radius/Solns/architecting_wlan_wp.asp   (3412 words)

  
 Intel Primer on Wireless LAN Technology   (Site not responding. Last check: 2007-10-08)
WLAN transmits on unlicensed spectrum as agreed upon by the major regulatory agencies of countries around the world (such as the FCC) although there is some variation by country.
The speed at which a WLAN performs depends on many things, from the efficiency of the wired network to the configuration of the building to the type of WLAN employed.
As a general rule for all WLANs, data throughput decreases as the distance between the WLAN access point and the wireless client increases.
www.intel.com /business/bss/infrastructure/wireless/solutions/technology.htm   (1769 words)

  
 » Wireless data | IT Facts | ZDNet.com   (Site not responding. Last check: 2007-10-08)
WLAN equipment spending to grow at 20% a year
Spending on WLAN equipment within each industry is expected to more than double by 2009, producing a five-year compound annual growth rate (CAGR) of nearly 20% within each sector.
Global WLAN revenue in Q2 2005 grew 18% from Q1 2005, to reach $258 mln.
blogs.zdnet.com /ITFacts/index.php?id=C0_19_1   (1414 words)

  
 WLAN - Hutchinson encyclopedia article about WLAN   (Site not responding. Last check: 2007-10-08)
WLAN is not available in the Hutchinson encyclopedia.
You may also use the word browser links:
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
encyclopedia.farlex.com /WLAN   (68 words)

  
 Linux WLAN project - FAQ
Often the use of cables is impractical if not impossible, in which case WLANs have proven their effectiveness: very portable, no need to wire every workstation and every room, entire networks can be easily moved without the requirement to additional wiring, cable drops or reconfiguration of the network.
Linux WLAN is meant to be at least a partial implemention of IEEE Standard 802.11 D10.0.
A couple of WLAN users reported that it is actually possible to use the Siemans Gigaset cordless phones (2.4Ghz spread spectrum): seems like live they can live happily together with 802.11 compliant wireless networks.
linux.grmbl.be /wlan   (3553 words)

  
 Comparing WLAN and LAN -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
Wireless networks ((A local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol) WLAN) have become common in organisations and home use.
This is seen as a big advantage, however ignoring the need to configure the Wireless LAN with the same care as a wired network is one of the main reasons that a Company's biggest Security 'hole' is often it's Wireless LAN.
Many companies provide both wired connections for fixed offices and wireless connections for the convenience of users who need to roam around the site.
www.absoluteastronomy.com /encyclopedia/c/co/comparing_wlan_and_lan5.htm   (1376 words)

  
 How to build a secure WLAN - Computerworld
WLAN access points can be probed by anyone within reach of the network's radio signal, thus constituting physically unbounded entry points from which to launch intrusions, viruses and all other types of attacks that threaten landline networks.
WLAN access points are often deployed inside corporate networks behind conventional firewalls, making these access points even more attractive as points for launching attacks.
Develop WLAN management policies; internal employees should not be allowed to leak WLAN configuration information to outsiders or to construct an ad hoc network topology with a P2P configuration.
www.computerworld.com /mobiletopics/mobile/story/0,10801,78275,00.html?SKC=security-78275   (1777 words)

  
 Analyst Corner - Enterprise WLAN Grows Up - Analyst Corner - CIO
WLANs are graduating from employee-initiated deployments to centrally managed networks — albeit separately from the wired network currently.
Sixty percent of enterprises are upgrading or deploying WLAN networks in 2005.
WLAN management requires RF administration and enhanced security control in addition to traditional LAN management reporting and monitoring functions.
www2.cio.com /analyst/report3401.html   (1861 words)

  
 WLAN Design | Surveying the Wireless LANscape | January 22, 2004 | Network Computing   (Site not responding. Last check: 2007-10-08)
It may be tempting to calculate the number of access points you need to install based on the number of users and their minimum bandwidth requirements, but that can limit you down the road when you need more capacity.
Keep in mind, too, that though 802.11b is getting all the attention these days, 11a soon will become the high-performance WLAN standard of choice, so your infrastructure should support it from day one, or at least be upgradable to it in the near future.
Free-space path loss, which is more of an issue in open or outdoor environments, is the expanding and dispersing of radio signals as their wave fronts broaden, preventing them from being heard by receiving antennae.
www.nwc.com /showitem.jhtml?docid=1501ws1&_loopback=1   (1358 words)

  
 Enterprise WLAN Security and Management White Papers
WLAN vulnerability assessment and apply results to manage your risk.
The "leaky" nature of wireless LANs (WLANs), combined with the explosion of wireless technology in the corporate environment, means that WLAN security is a significant part of SOX audits.
Network administrators will learn about what is involved in managing a WLAN environment which runs both 802.11b and g devices and how 802.11g WLANs can be effectively managed with a wireless network analyzer.
www.airmagnet.com /products/wp-index.htm   (1039 words)

  
 WLAN Chips to Embark on Incredible Journey   (Site not responding. Last check: 2007-10-08)
Not only are home users adopting WLAN devices for their conventional computer connectivity needs, but other residential uses for WLAN chips, such as wireless video pads, are starting to become popular, especially in Asia.
However, WLAN chipset revenue is expected to increase to $324.5 million in 2002, an almost 50% increase from the year earlier.
The report, WLAN Chipset Market - The Incredible Journey Is Just Beginning (#IN020271WT), covers WLAN technology from both a standards and component point-of-view, and explores the many changes occurring in the industry.
www.instat.com /press.asp?ID=167&sku=IN020271WT   (642 words)

  
 Spread Spectrum Scene Online's Wireless LAN page
WLANs can be defined as short-range packet data communications between base stations and user terminals that permit data rates up to 54 Mbps for coverage in indoor hot spots.
WLAN allows people working within the same building to access their company's Intranet wirelessly.
WLAN security is a big issue in the news these days (see news articles farther up the page).
sss-mag.com /wlan.html   (1503 words)

  
 X-Micro WLAN 11g Turbo Mode Broadband Router and PCMCIA card   (Site not responding. Last check: 2007-10-08)
For sometime now, users have been trucking along at 11 Mbps and 54 Mbps using 802.11b and 802.11g components such as routers, PCI cards, etc. But, as with everything else built into, installed on, or just connected to a PC, there's always room for improvement, and this usually means doing something faster.
Both of these components use a Turbo Mode, that is supposed to bring transfer speeds up as high as 108 Mbps, all the while staying within the standard 2.4GHz frequency band that is commonly being used today.
The X-Micro WLAN 11g Turbo Mode Broadband Router comes packaged with the essentials: a user's manual in English and German, one CAT5 patch cable and the power supply.
www.hothardware.com /viewarticle.cfm?articleid=603&cid=7   (704 words)

  
 CommsDesign - Securing WLAN Links: Part 3   (Site not responding. Last check: 2007-10-08)
Depending on which side of the wireless LAN (WLAN) fence you are on, you may like or dislike the wireless equivalent privacy (WEP) protocol.
In an 802.1x-equipped WLAN, a client (known as the supplicant) requests access to an access point (known as the authenticator).
The cryptographic implication is that the key-space is larger than before and whenever the WLAN comes close to running out of encryption keys, the AP may broadcast a new root key thus generating a brand new key-space.
www.commsdesign.com /design_corner/OEG20020730S0022   (4868 words)

  
 Intel's Centrino Strikes Blow at WLAN Firms
WLAN chipset manufacturers such as Intersil or Agere and WLAN card producers including Netgear, 3COM, Samsung Electro-Mechanics, Acrowave and MMCTechnology are directly affected by Intel's Centrino strategy.
The WLAN industry is buzzing with talk about Intel's Centrino technologies, which are flagging the company's intent to become a leader in mobile and wireless technologies, which will be key technologies for the Internet, multimedia, and high-speed networking.
WLAN companies, worried about Intel's advance into the wireless market, are also angling to develop competencies in other fields besides notebooks.
www.eweek.com /article2/0,4149,1240253,00.asp   (1457 words)

  
 WLAN Equipment Revenues Set to Increase 33% in China   (Site not responding. Last check: 2007-10-08)
The high-tech research firm expects WLAN equipment revenues in China to increase at a near 33% CAGR from about $54 million in 2004 to almost $160 million by 2008.
Adding to upward momentum for WLAN in the China marketplace are sharply decreasing costs for both WLAN equipment and notebook computers — a trend that will continue to lend attractiveness to WLAN usage, especially for high-end business users.
The report, China's WLAN Market Analysis and Forecast 2003-2008 (#IN0401707CHW), includes a discussion of and presents In-Stat/MDR's conclusions about how WLAN technology will develop over the next five years, as well as providing information on the companies that participate in this widening industry, including network equipment vendors and service providers.
www.instat.com /press.asp?ID=1083&sku=IN0401707CHW   (527 words)

  
 WLAN installation policies
This could be because end users are buying notebooks with WLAN adapters embedded in them and are bringing the technology to their place of work.
The other is to make sure you get the best coverage and least interference out of your WLAN topology - in other words, to make sure that access points are installed in the spots where they optimize reach with the right amount of coverage overlap so that the channels do not interfere with one another.
Similarly, when supporting remotely mobile users who might be using a public WLAN service, most companies will do so using an IPSec VPN to encrypt the user's session not only over the radio-access link but over the untrusted public Internet as well.
www.networkworld.com /newsletters/wireless/2002/01354005.html   (634 words)

  
 Prepare your WLAN for voice   (Site not responding. Last check: 2007-10-08)
While several standards are emerging to help in the delivery of real-time applications, there are fundamental capabilities that are required in a WLAN to support a mixed voice and data environment, such as quality of service (QoS), fast roaming, RF management and security.
Any enterprise planning a WLAN rollout should understand what specific attributes are required to support voice, and how best to implement these features in a cost-effective manner.
The 802.11 working group is also in the process of defining a new amendment to the WLAN medium-access control, called 802.11e, which defines QoS extensions for the first hop between the mobile device and the access point.
www.comnews.com /stories/articles/0804/0804WLAN.htm   (1075 words)

  
 WLAN Link Planner   (Site not responding. Last check: 2007-10-08)
For a proper WLAN performance, the transmitting power + propagation loss + receiving sensitivity must be greater than 0.
You'll have to find WLAN equipment that is able to reduce its power internally.
In normal conditions whithout any other WLAN on the frequency and whithout industrial noise the noise level will be around -100dBm.
www.qsl.net /pa0hoo/helix_wifi/linkbudgetcalc/wlan_budgetcalc.html   (2344 words)

  
 AbsoluteValue Systems, Inc. - linux-wlan Page
The goal of the linux-wlan(tm) Project is to develop a complete, standards based, wireless LAN system using the GNU/Linux operating system.
A comprehensive listing of all currently-available WLAN adapters with their chipset and linux-wlan-ng software compatibility can be viewed HERE.
For additional information regarding Linux WLAN please refer to Jean Tourrilhes excellent HOWTO at http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wireless.html and also the Atmel list at http://at76c503a.berlios.de/devices.html.
www.linux-wlan.org   (306 words)

  
 WLAN analyzers
Many WLAN equipment vendors include site survey tools, either with their access point or client products - but these are often rudimentary, not standardized and not designed for the multiple phases of WLAN analysis.
WLAN analyzers usually consist of the same components used in WLANs: popular 802.11 network cards in either a notebook, handheld, or, in one case, a proprietary portable form factor.
The range of a handheld device is similar to that of notebook-based WLAN analyzers, except that a handheld device is much easier to wave in the air while looking for a signal.
www.networkworld.com /reviews/2003/0414rev.html   (1217 words)

  
 Unstrung - Enterprises Expand WLAN - Wireless Networking News Wire
In addition to the planned cross-departmental deployments, the findings of "WLAN Adoption Trends 2004" strongly suggest that WLAN adoption has progressed beyond the phase of early adopters-those firms such as management consultancies and businesses with large traveling sales or field service organizations.
Current WLAN penetration is low; 65% of WLAN users report that 10% or fewer of their employees use WLANs.
Users are only moderately satisfied with WLANs' speed, reliability, and ease of set-up, representing an opportunity for improvement by WLAN vendors.
www.unstrung.com /document.asp?doc_id=45773   (596 words)

  
 Asia's WLAN Shipments To Hit 22 Million Units   (Site not responding. Last check: 2007-10-08)
Worldwide WLAN revenues will increase 26 percent in 2002 while WLAN unit shipments will grow 73 percent in 2002 with shipment totaling 26.5 million units in 2002, up from 15.5 million units the year before.
Currently, North America is the largest region for WLAN shipments as it is projected to account for 63 percent of shipments in 2002.
Gartner forecasts the penetration of WLAN into the professional mobile PC installed base will grow from nine percent in 2000 to almost 50 percent by the end of 2003.
www.internetnews.com /stats/article.php/1467911   (1020 words)

  
 WLAN Wireless Networking   (Site not responding. Last check: 2007-10-08)
WLAN allows you at home to share an Internet connection in all rooms,
Depending on the WLAN devices and where it is used (outside or in a building with walls),
WLAN network cards are supported for all versions of Windows, as long as the
www.wown.com /j_helmig/wlan.htm   (720 words)

  
 WLAN Security Monitors | Watching the Waves | March 4, 2004 | Network Computing   (Site not responding. Last check: 2007-10-08)
We asked enterprise WLAN infrastructure providers to let us evaluate their integrated monitoring capabilities, but only Airespace, Aruba Wireless Networks and Cisco Systems agreed.
Then there are moochers who sit outside your building and hog your bandwidth, possibly driving users to throw day-old bagels at you when they can't connect because of RF interference.
The life of a WLAN admin is fraught with peril.
www.nwc.com /showArticle.jhtml?articleID=18200309   (873 words)

  
 CommsDesign - Securing WLAN Links: Part 2   (Site not responding. Last check: 2007-10-08)
This is the second part in a three-part series on securing WLAN links.
Because the flipping bit carries through after an RC4 decryption, an intruder can flip the desired bits in the message and then adjust the IC so that the message appears valid to the receiver.
When looking at WLAN authentication, one of the questions that comes to mind is "Why is IEEE sticking with RC4 even when it has been shown to be unsuitable for the wireless medium?".
www.commsdesign.com /design_corner/OEG20020723S0009   (4164 words)

  
 [No title]   (Site not responding. Last check: 2007-10-08)
What are the changes that need to be done to run the WLAN with Big Endian linux.
Jun 4 17:44:18 x5linux /etc/hotplug/wlan.agent[3832]: WLAN wlan0 brought up successfully.
One problem I ran into is that after starting the wlan stuff, I needed to manually enter a default gateway using ifconfig otherwise it wouldn't work.
lists.linux-wlan.com /pipermail/linux-wlan-user/2003-June.txt   (13344 words)

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