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PANA Single Authentication PaC NAS RADIUS Server a) < Discovery and handshake phase> | | | < Authentication Authorization phase> |PANA-Auth-Request(x) | | b) |<---------------------| | |PANA-Auth-Answer(x) | | c) |--------------------->| | | | AAA-Request | d) | |----------------------->| | | AAA-Challenge | e) | |<-----------------------| |PANA-Auth-Request(x+1)| | f) |<---------------------|........................| |PANA-Auth-Answer(x+1) | | g) |--------------------->|........................| | | AAA-Request | h) | |----------------------->| | | AAA-Accept | i) | |<-----------------------| |PANA-Bind-Request | | j) |<---------------------| | |PANA-Bind-Answer | | k) |--------------------->| | | | AAA-Accounting(Start)| l) | |----------------------->| | | | < PANA access phase > |