April 2011
Intermediate to advanced
368 pages
11h 36m
English
Content preview from Secure Roaming in 802.11 Networks
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Chapter 7
pair of access points, this time saving occurs at a critical time of the roam at the expense of the
slightly increased overhead incurred during the noncritical preroam phase. This saving is the
crux of the argument in favor of preauthentication. In a real network having many access
points, it is likely that the STA will find more than one roaming candidate during its scans. It
is likely that the STA will attempt to preauthenticate with each of these candidate access
points. The processing overhead on the RADIUS server per authentication is nontrivial; in the
now-normal case that some TLS-related technology is used with a tunneled EAP method, ...
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