[Qt Extended] Wifi works, but no DNS

[Alastair Johnson]

Jette Derriche wrote:
> Of cause... 5 minutes after I sent the below mail, it started working...
> Now I need to figure out what I've done right :-)

You may just have been lucky with the timing. With that configuration 
for eth0 in /etc/network/interfaces the dhcp requests are started as 
soon as wpa_supplicant is started, not when it manages to associate. If 
association happens before the three dhcp attempts time out then you get 
an address. If association happens after that then you have a connection 
but get the 'no lease, failing' message you note. You can manually start 
a new dhcp request at this point to get an address, ideally echoing the 
pid to the location expected by the network scripts so that dropping the 
interface works as expected. I don't remember the details though.

> On Wed, 2008-10-29 at 00:19 +0100, Jette Derriche wrote:
>> On Tue, 2008-10-28 at 19:37 +0100, Jette Derriche wrote:
>>> I have configured Wireless LAN, and it seems to work. At least it says
>>> "Online" under Settings -> Internet. But initially it says "pending..."
>>> and then after a while it says "offline". I go into "properties" and
>>> select "Wireless Encryption". I don't change anything.. then press
>>> "back", and then it says "Online"...
>> Clearly something is not right:
>>
>> ~# route -n
>> Kernel IP routing table
>> Destination     Gateway         Genmask         Flags  Iface
>> 192.168.0.0     0.0.0.0         255.255.255.0   U      usb0
>> 169.254.0.0     0.0.0.0         255.255.0.0     U      eth0
>> 0.0.0.0         192.168.0.200   0.0.0.0         UG     usb0
>>
>> (I removed the Metric, Ref and Use columns, since they are all zero)
>>
>> Apparently the GUI adds double quotes to the key...
>>
>> ----------------------------------------------------------
>> # ifup eth0
>> sed: unrecognized option `--quiet'
>> BusyBox v1.11.1 (2008-08-05 02:00:09 CEST) multi-call binary
>>
>> Usage: sed [-efinr] pattern [files...]
>>
>> WPA: Configuring Interface
>> Line 9: Too long WEP key 0 '"3a9b7xxxxxxxxxxxxxxefad62a'.
>> Line 9: failed to parse wep_key0 '"3a9b7xxxxxxxxxxxxxxefad62a'.
>> Line 11: failed to parse network block.
>> Failed to read or parse configuration
>> '/etc/wpa_supplicant/wpa_supplicant.conf'.
>> wpa_supplicant: /usr/sbin/wpa_supplicant daemon failed to start
>> ----------------------------------------------------------
>>
>> The error disappeared when I removed the quotes around the key in
>> wpa_supplicant.conf ... 
>>
>> This is a bit frustrating:
>>
>> ----------------------------------------------------------
>> root at om-gta02:~# ifup eth0  
>> ifup: interface eth0 already configured
>> root at om-gta02:~# ifdown eth0
>> cat: can't open '/var/run/udhcpc.eth0.pid': No such file or directory
>> root at om-gta02:~# touch /var/run/udhcpc.eth0.pid
>> root at om-gta02:~# ifdown eth0
>> ifdown: interface eth0 not configured
>> ----------------------------------------------------------
>>
>> But aside from that, now I get this:
>>
>> ----------------------------------------------------------
>> root at om-gta02:~# ifup eth0
>> sed: unrecognized option `--quiet'
>> BusyBox v1.11.1 (2008-08-05 02:00:09 CEST) multi-call binary
>>
>> Usage: sed [-efinr] pattern [files...]
>>
>> WPA: Configuring Interface
>> Failed to connect to wpa_supplicant - wpa_ctrl_open: Connection refused
>> ioctl[SIOCSIWENCODEEXT]: Operation not supported
>> ioctl[SIOCSIWENCODEEXT]: Operation not supported
>> ioctl[SIOCSIWENCODEEXT]: Operation not supported
>> ioctl[SIOCSIWENCODEEXT]: Operation not supported
>> udhcpc (v1.11.1) started
>> Sending discover...
>> Sending discover...
>> Sending discover...
>> No lease, failing
>> ----------------------------------------------------------
>>
>> My config files:
>>
>> ----------------------------------------------------------
>> # /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
>>
>> # The loopback interface
>> auto lo
>> iface lo inet loopback
>>
>> # Wireless interfaces
>> iface wlan0 inet dhcp
>> wireless_mode managed
>> wireless_essid any
>> iface atml0 inet dhcp
>>
>> # Wired or wireless interfaces
>> iface eth0 inet dhcp
>>     wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
>>                     
>> iface eth1 inet dhcp
>>                                  
>> # Ethernet/RNDIS gadget (g_ether)              
>> # ... or on host side, usbnet and random hwaddr
>> auto usb0             
>> iface usb0 inet static       
>>         address 192.168.0.202
>>         netmask 255.255.255.0
>>         network 192.168.0.0  
>>         gateway 192.168.0.200
>>                       
>> # Bluetooth networking
>> iface bnep0 inet dhcp
>> -----------------------------------------------------------
>>
>> -----------------------------------------------------------
>> ctrl_interface=/var/lib/wpa_supplicant
>> ctrl_interface_group=0
>> eapol_version=1
>> fast_reauth=1
>> ap_scan=1
>> network={
>>     ssid="OMNIX"
>>     wep_key0=3a9b7xxxxxxxxxxxxxxefad62a
>>     key_mgmt=NONE
>> }
>> -----------------------------------------------------------
>>
>> I have also tried iwconfig with no luck....
>> Adding the IP of my router or openDNS nameservers to resolv.conf, does
>> not help either...
>>
>> Any ideas?
>>
>> /Jette