wpa_supplicant and hidden ssid

[Helmut Schaa]

Hi,

Am Samstag, 1. November 2008 schrieb Katharina Brandl:
> thanks a lot for your help. ap_scan=1 doesn't work, but ap_scan=2 and 
> pairwise/group ciphers in my config file it works fine.

Ahhh, missed one thing. If you use ap_scan=1 you have to add scan_ssid=1
to your network block!

> So for others having the same problems, my wpa_supplicant.conf:
> 
> ctrl_interface=/var/run/wpa_supplicant
> ctrl_interface_group=wheel
> ap_scan=2
> 
> network={
> ssid="mySSID"
> key_mgmt=WPA-PSK
> psk="passphrase"
> priority=5
> proto=WPA
> pairwise=TKIP
> pairwise=TKIP
> }
> 
> What exactely is the meaning of proto and priority? Becauce these two 
> line are the only ones I added and now I works...

priority is only used if you have multiple network blocks. It just allows
wpa_supplicant to determine which network to use if multiple configured ones
are found.

proto=WPA tells the supplicant to either use WPA or WPA2 (RSN) and in case
you're using ap_scan=2 you have to provide the driver with that information.


Helmut

> Regards,
> Kathi
> 
> Helmut Schaa wrote:
> > Am Samstag, 1. November 2008 schrieb Katharina Brandl:
> >> is it possible to connect to a network with hidden ssid via 
> >> wpa_supplicant?
> > 
> > Yes, this is possible ;)
> > 
> >> I have the ipw2200 driver and the network works with  
> >> WPA-PSK and pairwise/group cipher TKIP.
> > 
> > With a recent ipw2200 you should be able to use either ap_scan=2 or ap_scan=1
> > in your configuration file. The difference between both approaches is: with
> > ap_scan=1 you do not need to configure the group/pairwise cipher at all as
> > wpa_supplicant will see which ciphers are supported in the scan results and
> > choose the AP it wishes to associate with. With ap_scan=2 the decision is left
> > to the driver and thus the driver needs to know the used ciphers -> You need
> > to configure the ciphers in your configuration file. Therefore I'd suggest to
> > use ap_scan=1.
> > 
> > => Your configuration file should contain at least the following:
> > 
> > ap_scan=1
> > network={
> >         ssid="your_networks_name"
> >         psk="your_password"
> >         key_mgmt=WPA-PSK
> >         priority=5
> >         proto=WPA
> > }
> > 
> > Regards,
> > Helmut
> > 
>