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Reference Manual for the NETGEAR RangeMax™ Wireless Access Point WPN802
Glossary
13
202-10101-01, May 2005
As a recent development, the debate over the legality of warchalking is still going on.
The practice stems from the U.S. Depression-era culture of wandering hobos who would make marks
outside of homes to indicate to other wanderers whether the home was receptive to drifters or was
inhospitable.
War Driving
War driving is the act of locating and possibly exploiting connections to wireless local area networks while
driving around a city or elsewhere. To do war driving, you need a vehicle, a computer (which can be a
laptop), a wireless Ethernet card set to work in promiscuous mode, and some kind of an antenna which can
be mounted on top of or positioned inside the car. Because a wireless LAN may have a range that extends
beyond an office building, an outside user may be able to intrude into the network, obtain a free Internet
connection, and possibly gain access to company records and other resources.
Some people have made a sport out of war driving, in part to demonstrate the ease with which wireless
LANs can be compromised. With an omnidirectional antenna and a geophysical positioning system (GPS),
the war driver can systematically map the locations of 802.11b wireless access points.
WEP (Wired Equivalent Privacy)
Basic wireless security provided by Wi-Fi. In some instances, WEP may be all a home or small-business
user needs to protect wireless data. WEP is available in 40-bit (also called 64-bit), or in 108-bit (also called
128-bit) encryption modes. As 108-bit encryption provides a longer algorithm that takes longer to decode, it
can provide better security than basic 40-bit (64-bit) encryption.
Wi-Fi (Wireless Fidelity)
Another name for IEEE 802.11b. Products certified as Wi-Fi are interoperable with each other even if they
are from different manufacturers. A user with a Wi-Fi product can use any brand of access point with any
other brand of client hardware that is built to the Wi-Fi standard.
Wi-Fi Alliance (formerly WECA – Wireless Ethernet Compatibility Alliance)
The Wi-Fi Alliance is a nonprofit international association formed in 1999 to certify interoperability of
wireless Local Area Network products based on IEEE 802.11 specification. Currently the Wi-Fi Alliance
has 193 member companies from around the world, and 509 products have received Wi-Fi certification since
certification began in March of 2000. The goal of the Wi-Fi Alliance's members is to enhance the user
experience through product interoperability (www.weca.net).
Wi-Fi Protected Access (WPA)
WPA is a security technology for wireless networks that improves on the authentication and encryption
features of WEP (Wired Equivalent Privacy). In fact, WPA was developed by the networking industry in
response to the shortcomings of WEP.
One of the key technologies behind WPA is the Temporal Key Integrity Protocol (TKIP). TKIP addresses
the encryption weaknesses of WEP. Another key component of WPA is built-in authentication that WEP
85


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