Dynamic AP selection from WPA_Supplicant

khali singh khali3620 at gmail.com
Fri Jun 17 03:48:56 PDT 2016

Hi Team

Do you have any comments on this issue? It would be great to receive
the community feedback on this. We are a small startup and need to
deliver a functioning prototype soon.


On Mon, Jun 13, 2016 at 10:19 AM, khali singh <khali3620 at gmail.com> wrote:
> Hi
> We are facing similar issues and want to achieve the same
> functionality. I wonder if there is something that can be done at the
> wpa_supplicant level rather than all of us writing our own hacks? I
> think this kind of functionality will be useful as wpa_supplicant is
> increasingly deployed in headless devices.
> Jouni, do you have any comments?
> Thanks
> Khali
> On Fri, Jun 10, 2016 at 4:09 PM, Raghavendra M S <booninfosec at gmail.com> wrote:
>> Hi,
>> We have successfully been experimenting with wpa_supplicant on various
>> versions of raspberry pies for enterprise Wifi authentication
>> (802.1x). We now plan to sell our stand-alone (no other user
>> interface) raspberry pie devices to customers that would deploy these
>> in their SME offices. We will embed the Raspberry pies with
>> pre-installed certificates and domain information about our server.
>> The network administrator of the SME is required to forward the EAP
>> messages to our server by configuring his/her AP. However, we don't
>> want to (and cannot) standardize the access point name chosen by the
>> SME administrator (the AP would also serve other general purpose
>> network access). Therefore, a method for dynamic AP selection is
>> needed. We plan to use EAP-TLS as the authentication method. As there
>> is no visual or command line interface accessible from raspberry pie,
>> we want it to try and connect with all the APs in its vicinity,
>> automatically.
>> We have thought about different approaches to do this. We found a
>> python script that scans the network
>> https://sourceforge.net/projects/wpascm/ . However, it still asks the
>> user to manually choose the correct AP. We believe that we  can modify
>> the script to dynamically select the right AP (and EAP server
>> combination).  A similar approach was to use  wpa_cli scan list and
>> feed formatted result to  wpa_cli to try connecting to different APs.
>> Are there any better ways of doing this? Are we missing something?
>> Thank you.
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