802.11u Roaming Consortium ID

Dr. Ajay N. Khosla drkhosla at ankhnet.net
Tue Jul 24 01:09:03 EDT 2012


I am trying to test interworking (802.11u) using hostapd and wpa_supplicant development version. 


I am using openwrt and compile hostapd with CONFIG_INTERWORKING compile option and flash access point. 


The purpose of using interworking to help client to select right hotspot network. To make simple test I set asra bit so that user can authenticate using Web Authentication/WISPr. I set following parameter in hostapd.conf for interworking. 



interworking=1 
access_network_type=2 
internet=1 
asra=1 
esr=0 
uesa=0 
venue_group=2 
venue_type=0 
roaming_consortium=2233445566 
venue_name=eng:Vile-Parle 


Using Wireshark sniffer I can see all these parameters are part of beacon and working fine. 


I set interworking=1 in wpa_supplicant.conf. For Web Authentication/WISPr I don't think any other parameter of interworking is useful in this. I also set 

network={ 
ssid="HomeNet" 
key_mgmt=NONE 
} 


Now problem is that interworking=1 alone does not help wpa_supplicant to select right network. As I presume there are many Roaming Consortium ID in network. Then which parameter help supplicant to select "HomeNet" or any other SSID which have roaming_consortium as 2233445566. 


There is any parameter in wpa_supplicant.conf which I can set to 2233445566 and it will connect to same SSP irrespective to SSID. 


with regards 
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