trek
02-06-2007, 12:54 PM
I'm currently going through the 80211 standard trying to understand ad hoc at its base functionality. I must say I've become a little confused as far as what happens to establish connections in ad-hoc. In an infrastructure network, nodes have to go through an authentication and association exchange with the AP.
Section 5.6 says:
"In an IBSS, only Class 1 and Class 2 frames are allowed since there is no DS in an IBSS.
The services that apply to an IBSS are the SSs."
Meanwhile, the station services (SSs) are listed as Authentication, Deauthentication, Privacy, and MSDU delivery. Association, Disassociation, and Reassociation are all listed Distribution System Services (DSSs) but are also labeled as class 2 frames.
As far as I can gather, this means ad hoc implements authentication but does not provide for association between nodes. Though, I have read in several places that no authentication takes place.
Does anyone know the exact process for Ad Hoc station "association", or does it even happen at all?
Section 5.6 says:
"In an IBSS, only Class 1 and Class 2 frames are allowed since there is no DS in an IBSS.
The services that apply to an IBSS are the SSs."
Meanwhile, the station services (SSs) are listed as Authentication, Deauthentication, Privacy, and MSDU delivery. Association, Disassociation, and Reassociation are all listed Distribution System Services (DSSs) but are also labeled as class 2 frames.
As far as I can gather, this means ad hoc implements authentication but does not provide for association between nodes. Though, I have read in several places that no authentication takes place.
Does anyone know the exact process for Ad Hoc station "association", or does it even happen at all?