April 2011
Intermediate to advanced
368 pages
11h 36m
English
Content preview from Secure Roaming in 802.11 Networks
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The 802.11 Workgroups’ Solutions for Fast Secure Roaming
Client
802.11 Auth Resp (FT, MDIE)
Reassociation Req(MDIE, RIC-Request)
Reassociation Resp(MDIE, RIC-Response)
(Associated with current AP,
user data transfer possible.)
(Associated with target AP,
user data transfer possible.)
802.11 Auth Req (FT, MDIE)
802.11 Auth ACK (FT, MDIE, RIC-Response)
802.11 Auth Confirm (FT, MDIE, RIC-Request)
(Note: The time between the Auth ACK
and Reassoc-Req below must not
exceed the deadline time specified
in Initial Association’s TIE.)
(STA now breaks session with current AP.)
Current AP Target AP
Figure 9.12: Fast BSS Transition Over the Air, QoS, and No Security.
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