Re: [Madwifi-users] Connection problems using Debian's ifup

[Adam N. <il...@ya...>]

It looks like the problem is in debian's wireless-tools package.  Take a look
at ifup (I believe it's just a shell script) and see what it's calling and why
it's not calling: iwconfig ath0 ap 0d:0f:cb:b1:bd:eb essid home_wpa

If the problem were in madwifi, the kernel or wireless tools then you wouldn't
be able to connect no matter what you do.

--Adam

--- "C. Albers" <cha...@ya...> wrote:

> Hi,
> 
> Since I got laid off, I decided to devote what I do professionally to 
> some wireless troubleshooting.  I'm not sure if this is a bug in madwifi, 
> since there are so many variables in connecting wirelessly: (madwifi, 
> the kernel, wpa_supplicant, or the wireless tools suite).
> 
> On my debian unstable install, I used to simply be able to use ifup ath0,
> and connect to my madwifi/hostapd server using radius authentification.  
> But now I can't.  
> 
> My /etc/network/interfaces stanza was this...
> 
> iface ath0 inet dhcp 
>     pre-up /usr/local/bin/wlanconfig $IFACE create wlandev wifi0 wlanmode sta
>     post-down /usr/local/bin/wlanconfig $IFACE destroy
>     wireless_mode Managed
>     wireless_channel 1
>     wireless_essid home_wpa
>     wireless_ap 0d:0f:cb:b1:bd:eb
>     wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
> 
> The wireless_* lines are from debian's wireless-tools package, and they
>  simply make calls to iwconfig before the interface is up.  The wpa-conf 
> line simply calls wpa_suppliant with that wpa_supplicant.conf file, whose 
> configuration follows:
> 
> ap_scan = 1
> fast_reauth=1
> eapol_version=1
> network={
>     disabled=0
>     id_str="ousia wpa-eap"
>     ssid="home_wpa" 
>     key_mgmt=WPA-EAP
>     eap=TLS
>     proto=WPA
>     auth_alg=OPEN 
>     pairwise=CCMP
>     identity="sekritidentity"
>     ca_cert="/etc/wpa_supplicant/certs/cacert.pem"
>     client_cert="/etc/wpa_supplicant/certs/client_cert.pem"
>     private_key="/etc/wpa_supplicant/certs/client_key.pem"
>     private_key_passwd="sekritpasswd"
> }
> 
> However, this set up doesn't work anymore, when I use ifup.  
> No authentification takes place, and my dhcp server on the hostap 
> end doesn't assign me an ip address.
> 
> The only way I can now get a connection is if I use
>  the following /etc/network/interfaces stanza...
> 
> iface ath0 inet dhcp 
>     pre-up /usr/local/bin/wlanconfig $IFACE create wlandev wifi0 wlanmode sta
>    
>     post-down /usr/local/bin/wlanconfig $IFACE destroy
>     wireless_mode Managed
>     wireless_ap any
> 
> ....and do the following commands in this exact order:
> ifup ath0
> iwconfig ath0 ap 0d:0f:cb:b1:bd:eb essid home_wpa
> wpa_supplicant -Dmadwifi -iath0 -c /etc/wpa_supplicant/wpa_supplicant.conf
> 
> So does anybody have any idea about why I can't using ifup anymore 
> with the more wireless-* extensions, and by invoking wpa_supplicant
> in the interfaces stanza?
> 
> Here's my setup
> - A laptop with a mini-pci card using a Atheros Communications, Inc.
> AR5212/AR5213 chip.
> - kernel 2.6.23.1 (custom built)
> - OS - Debian unstable
> - wireless-tools (iwconfig, etc.) version 29-1
> - madwifi - I have used r2751 to release-0.9.4 (release 0.9.0 to 0.9.3.x 
>   refuse to compile)
> - wpa_supplicant, version 0.5.8 to 0.6.3.  This is a custom build 
>   using the appropriate madwifi sources.  (All debian ifup scripts 
>   related to wpa_supplicant point to the custom build).
> 
> Any help would be greatly appreciated.
> 
> Thanks,
> Chad
> 
> 
> 
> 
>      
>
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