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Lightweight Extensible Authentication Protocol

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The Lightweight Extensible Authentication Protocol (LEAP) is a proprietary wireless LAN authentication method developed by Cisco Systems. Important features of LEAP are dynamic WEP keys and mutual authentication (between a wireless client and a RADIUS server). LEAP allows for clients to reauthenticate frequently; upon each successful authentication, the clients acquire a new WEP key (with the hope that the WEP keys don't live long enough to be cracked).

Some 3rd party vendors also support LEAP through the Cisco Compatible Extensions Program, as listed here: http://www.cisco.com/web/partners/pr46/pr147/partners_pgm_concept_home.html

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