hi
actually, the WISPr BP by the Wi-Fi Alliance is not a standard, it's explicitly marked as non-normative of any kind and called "best practice for WISP roaming".
since Wi-Fi alliance still considers 802.1X as not wide-spread enough, they did not include it in their current recommendations but they also state that they will do it once (which is not suprising given 802.1X is included in WPA and 802.11i).
since i think that WLAN without L2 access control is quite mindless in the general case, you should look at the 802.1X for roaming. now, 802.1X typically uses (but does not require) radius. additionally, since you are asking this at the freeradius list, i would say that WISP roaming basically equals radius roaming. now, the development is quite straightforward: make it be radius proxying and define additional attributes (if needed) for SLA purposes etc. divers optimizations are possible e.g. to avoid O(n^2) number of security associations, to avoid any common databases, to minimize the interdomain traffic and sim. to keep the high reactivity of the system (propagation of the changes applied to a user profile) in this scope, etc etc etc. i think some work has been already done on it and a lot is known from the basic radius management in a production environment.
ciao artur
Thor Spruyt wrote:
I actually mean roaming between WISPs, like GSM roaming. I don't understand why they have called AP handover also roaming, it always confuses people :)
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