Email Delivery

Receive new posts as email.

Email address

Syndicate this site

RSS | Atom

Contact

About This Site
Contact Us
Privacy Policy

Search


November 2010
Sun Mon Tues Wed Thurs Fri Sat
  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30        

Stories by Category

Basics :: Basics
Casting :: Casting Listen In Podcasts Videocasts
Culture :: Culture Hacking
Deals :: Deals
FAQ :: FAQ
Future :: Future
Hardware :: Hardware Adapters Appliances Chips Consumer Electronics Gaming Home Entertainment Music Photography Video Gadgets Mesh Monitoring and Testing PDAs Phones Smartphones
Industry :: Industry Conferences Financial Free Health Legal Research Vendor analysis
International :: International
Media :: Media Locally cached Streaming
Metro-Scale Networks :: Metro-Scale Networks Community Networking Municipal
Network Types :: Network Types Broadband Wireless Cellular 2.5G and 3G 4G Power Line Satellite
News :: News Mainstream Media
Politics :: Politics Regulation Sock Puppets
Schedules :: Schedules
Security :: Security 802.1X
Site Specific :: Site Specific Administrative Detail April Fool's Blogging Book review Cluelessness Guest Commentary History Humor Self-Promotion Unique Wee-Fi Who's Hot Today?
Software :: Software Open Source
Spectrum :: Spectrum 60 GHz
Standards :: Standards 802.11a 802.11ac 802.11ad 802.11e 802.11g 802.11n 802.20 Bluetooth MIMO UWB WiGig WiMAX ZigBee
Transportation and Lodging :: Transportation and Lodging Air Travel Aquatic Commuting Hotels Rails
Unclassified :: Unclassified
Vertical Markets :: Vertical Markets Academia Enterprise WLAN Switches Home Hot Spot Aggregators Hot Spot Advertising Road Warrior Roaming Libraries Location Medical Public Safety Residential Rural SOHO Small-Medium Sized Business Universities Utilities wISP
Voice :: Voice

Archives

November 2010 | October 2010 | September 2010 | August 2010 | July 2010 | June 2010 | May 2010 | April 2010 | March 2010 | February 2010 | January 2010 | December 2009 | November 2009 | October 2009 | September 2009 | August 2009 | July 2009 | June 2009 | May 2009 | April 2009 | March 2009 | February 2009 | January 2009 | December 2008 | November 2008 | October 2008 | September 2008 | August 2008 | July 2008 | June 2008 | May 2008 | April 2008 | March 2008 | February 2008 | January 2008 | December 2007 | November 2007 | October 2007 | September 2007 | August 2007 | July 2007 | June 2007 | May 2007 | April 2007 | March 2007 | February 2007 | January 2007 | December 2006 | November 2006 | October 2006 | September 2006 | August 2006 | July 2006 | June 2006 | May 2006 | April 2006 | March 2006 | February 2006 | January 2006 | December 2005 | November 2005 | October 2005 | September 2005 | August 2005 | July 2005 | June 2005 | May 2005 | April 2005 | March 2005 | February 2005 | January 2005 | December 2004 | November 2004 | October 2004 | September 2004 | August 2004 | July 2004 | June 2004 | May 2004 | April 2004 | March 2004 | February 2004 | January 2004 | December 2003 | November 2003 | October 2003 | September 2003 | August 2003 | July 2003 | June 2003 | May 2003 | April 2003 | March 2003 | February 2003 | January 2003 | December 2002 | November 2002 | October 2002 | September 2002 | August 2002 | July 2002 | June 2002 | May 2002 | April 2002 | March 2002 | February 2002 | January 2002 | December 2001 | November 2001 | October 2001 | September 2001 | August 2001 | July 2001 | June 2001 | May 2001 | April 2001 |

Recent Entries

In-Flight Wi-Fi and In-Flight Bombs
Can WPA Protect against Firesheep on Same Network?
Southwest Sets In-Flight Wi-Fi at $5
Eye-Fi Adds a View for Web Access
Firesheep Makes Sidejacking Easy
Wi-Fi Direct Certification Starts
Decaf on the Starbucks Digital Network
Google Did Snag Passwords
WiMax and LTE Not Technically 4G by ITU Standards
AT&T Wi-Fi Connections Keep High Growth with Free Service

Site Philosophy

This site operates as an independent editorial operation. Advertising, sponsorships, and other non-editorial materials represent the opinions and messages of their respective origins, and not of the site operator. Part of the FM Tech advertising network.

Copyright

Entire site and all contents except otherwise noted © Copyright 2001-2010 by Glenn Fleishman. Some images ©2006 Jupiterimages Corporation. All rights reserved. Please contact us for reprint rights. Linking is, of course, free and encouraged.

Powered by
Movable Type

« News for 12/4/2001 | Main | Loud Truth »

December 7, 2001

USA Today Gets Wi-Fi

USA Today's rather long and generally excellent piece on Wi-Fi: USA Today's two reporters on this piece did an excellent job of explaining Wi-Fi in words of three syllables or fewer, and avoided a lot of techie cant in explaining its utility and appeal.

One very weird error, though, based on what must be a misunderstanding. Another problem: There still isn't a Wi-Fi standard, so some of today's products might not work with others bought a year from now. That's expected to be ironed out soon, through action led by WECA and its 125 member firms. In fact, as readers of this forum know quite well, the WECA certification program has been in place for some time and is extremely effective. Virtually all devices for sale are certified as compliant with the Wi-Fi specification. Perhaps they confused the new 802.11a (Wi-Fi5) spec which is being finalized right now for certifying those devices.

Bravo to mass-media writers getting it right. And kudos to our friends in the community networking world for continuing to explain what they do and why (and apparently get their pictures in the paper).

3Com's Elegant Solution

Earlier in the week, I wrote about 3Com's announcement of a 4-device Ethernet-to-Wi-Fi bridge that required no special software and would work with any Wi-Fi access point. I queried the company for answers to a few questions about how it actually works, and decided that this is an awfully elegant solution.

The device doesn't use MAC masquerading, as I thought, where one MAC address would associate at the AP and the device would work like NAT in routing traffic. In fact, the bridge associates up to four MAC addresses via its single radio, effectively turning each Ethernet device into its own Wi-Fi device without any intermediate configuration.

This is extremely elegant, as it requires only minimal configuration of the bridge, and no real configuration of the Ethernet devices. Pricing was estimated at $350 and the unit is set to ship in January. I expect that this will supply one of the few missing pieces in enterprise/office migration to Wi-Fi, by bringing printers and older units into the loop.

Wireless Guerrillas in our Midst

The Wall Street Journal weighs in on free public Wi-Fi networks: I can't link to the article or reproduce it here, but suffice it to say that the analysis goes skin deep. It focuses pretty much on a single individual in Colorado, and doesn't - to my mind - fully capture what's going on.

The mainstream media is treating Wi-Fi the way the Internet was treated originally. The technical details coupled with scattered widespread and disparate methods of adoption and deployment lead to articles that try to exemplify a trend, but only illuminate a tiny aspect of it.

Here's the nut graf (the quintessence of the article): Mr. Selby is a wireless guerrilla, one of several hobbyists around the nation who are building shoestring wireless networks out of such materials as potato-chip cans and rubber hoses. They are doing so by piggybacking free of charge on the premium high-speed Internet connections that telecom and cable companies provide to many homes and businesses for as much as $1,000 a month. Even so, Mr. Selby, who eventually aims to charge for access to his network, says he hasn't encountered any resistance from providers of such high-speed links, who don't seem worried about his plans.

Selby isn't really the epitome of this topic, given that most of the community networkers never plan to charge - that's part of the point. I don't blame or discourage him from his goals, but the Journal picked an odd duck out of the line-up.

It also fails to discuss the obvious: many contracts with ISPs allow shared use of bandwidth among users. This is a frequent topic of conversation on the BAWUG wireless mailing list, which I recommend as a meet-and-learn list for anyone involved in setting up any kind of Wi-Fi network that has a free or fee public component. If your AUP (acceptible use policy) with your ISP prohibits sharing, then you're on your own. If you buy a T1, like one BAWUGer did, and it says you can resell bandwidth, you're golden.

It's clear the story was written to identify the coming convergence with cell carriers' interest: Other entrepreneurs are launching companies to offer small-scale Internet access via 802.11b in airports, hotels and coffee shops. And some think the technology could be harnessed to offer commercial high-speed Internet access to homes and offices. These developments could conceivably spell trouble for long-delayed "third-generation" cellphone networks, which are to offer high-speed data services in addition to voice. The small scale reference is odd, too: there are companies with a few dozen hot spots (which we'd all agree fits the definition), and then others like Wayport which have several hundred or have wired entire airport terminals. It'd be more accurate to say dozens of companies of all scales are trying to capitalize on the growing use of Wi-Fi in homes and businesses by building out networks.

This mysterious paragraph fails to explicate the security dilemma: Security is an issue, as some companies using 802.11b discovered when hackers tapped their corporate networks. Mr. Dayton says he can detect a neighbor's 802.11b network when he logs on at his Los Angeles home. You can't prevent people from picking up the signal, which is why Mr. Dayton sees his neighbor's network, but you can encrypt the traffic so they can't read it. Most experts think the problem can be circumvented. (Mr. Dayton in that graf, by the way, is Sky Dayton, founder of Earthlink.)

I would have written the graf this way: Wi-Fi offers built-in security through an encryption system, but researchers proved this was easily broken in summer 2001. Several free Internet tools allow non-technical hackers to break into networks that rely just on Wi-Fi's encryption. Corporations typically use a strong, unbroken method lumped together as VPN (virtual private network), while individuals are often stuck with little or no protection. ... and then into the rest of the graf eliminating that last, odd sentence. What problem can be circumvented? The lack of security, Wi-Fi's broken WEP system, or the presence of security (which I guess isn't a problem)?

1 Comment

send me the technical details please.