Ubuntu, wifi, and a Thinkpad T42

After messing around with Debian, I decided to try Ubuntu on this
Thinkpad T42. It looks like Ubuntu has, out of the box, installed the
ipw2200 driver and firmware. I can see the wireless interface just fine
with iwconfig and can connect to open WAPs just fine. However, I cannot
get it to authenticate with a WAP that uses WPA-PSK authentication and
TKIP encryption. What's wrong? What do I need to do?

(from dmesg)
[17179589.556000] ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.1.1
[17179589.556000] ipw2200: Copyright(c) 2003-2006 Intel Corporation
[17179589.556000] Warning: PCI driver ipw2200 has a struct device_driver shutdown method, please update!
[17179590.240000] ipw2200: Detected Intel PRO/Wireless 2915ABG Network Connection
[17179590.644000] ipw2200: Detected geography ZZA (11 802.11bg channels, 13 802.11a channels)

(from /var/log/daemon.log)

Oct 7 14:37:53 marvin dhclient: Listening on LPF/eth1/00:13:ce:b7:ce:f3
Oct 7 14:37:53 marvin dhclient: Sending on LPF/eth1/00:13:ce:b7:ce:f3
Oct 7 14:37:53 marvin dhclient: Sending on Socket/fallback
Oct 7 14:37:54 marvin dhclient: DHCPREQUEST on eth1 to 255.255.255.255 port 67
Oct 7 14:38:04 marvin last message repeated 2 times
Oct 7 14:38:13 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 6
Oct 7 14:38:19 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 11
Oct 7 14:38:30 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 19
Oct 7 14:38:49 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 16
Oct 7 14:39:05 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 9
Oct 7 14:39:14 marvin dhclient: No DHCPOFFERS received.
Oct 7 14:39:14 marvin dhclient: Trying recorded lease 10.0.0.80
Oct 7 14:39:17 marvin dhclient: No working leases in persistent database - sleeping.
Oct 7 14:40:23 marvin dhclient: receive_packet failed on eth1: Network is down

Note: that "trying recorded lease" is from when I sucessfully attached
to a WAP which used no authentication or encryption

--
David Griffith
(E-Mail Removed) <-- Switch the 'b' and 'u'

On Sat, 07 Oct 2006 21:52:16 +0000, Dave Griffith wrote:

> After messing around with Debian, I decided to try Ubuntu on this
> Thinkpad T42. It looks like Ubuntu has, out of the box, installed the
> ipw2200 driver and firmware. I can see the wireless interface just fine
> with iwconfig and can connect to open WAPs just fine. However, I cannot
> get it to authenticate with a WAP that uses WPA-PSK authentication and
> TKIP encryption. What's wrong? What do I need to do?
>
> (from dmesg)
> [17179589.556000] ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.1.1
> [17179589.556000] ipw2200: Copyright(c) 2003-2006 Intel Corporation
> [17179589.556000] Warning: PCI driver ipw2200 has a struct device_driver shutdown method, please update!
> [17179590.240000] ipw2200: Detected Intel PRO/Wireless 2915ABG Network Connection
> [17179590.644000] ipw2200: Detected geography ZZA (11 802.11bg channels, 13 802.11a channels)
>
> (from /var/log/daemon.log)
>
> Oct 7 14:37:53 marvin dhclient: Listening on LPF/eth1/00:13:ce:b7:ce:f3
> Oct 7 14:37:53 marvin dhclient: Sending on LPF/eth1/00:13:ce:b7:ce:f3
> Oct 7 14:37:53 marvin dhclient: Sending on Socket/fallback
> Oct 7 14:37:54 marvin dhclient: DHCPREQUEST on eth1 to 255.255.255.255 port 67
> Oct 7 14:38:04 marvin last message repeated 2 times
> Oct 7 14:38:13 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 6
> Oct 7 14:38:19 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 11
> Oct 7 14:38:30 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 19
> Oct 7 14:38:49 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 16
> Oct 7 14:39:05 marvin dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 9
> Oct 7 14:39:14 marvin dhclient: No DHCPOFFERS received.
> Oct 7 14:39:14 marvin dhclient: Trying recorded lease 10.0.0.80
> Oct 7 14:39:17 marvin dhclient: No working leases in persistent database - sleeping.
> Oct 7 14:40:23 marvin dhclient: receive_packet failed on eth1: Network is down
>
> Note: that "trying recorded lease" is from when I sucessfully attached
> to a WAP which used no authentication or encryption

Are you running wpa_supplicant? If not, you need to to use WPA. WPA is
not built-in to any Linux wifi-card driver I've ever used.

http://hostap.epitest.fi/wpa_supplicant/

Stef

Stefan Patric <(E-Mail Removed)> wrote:
> On Sat, 07 Oct 2006 21:52:16 +0000, Dave Griffith wrote:

>> After messing around with Debian, I decided to try Ubuntu on this
>> Thinkpad T42. It looks like Ubuntu has, out of the box, installed the
>> ipw2200 driver and firmware. I can see the wireless interface just fine
>> with iwconfig and can connect to open WAPs just fine. However, I cannot
>> get it to authenticate with a WAP that uses WPA-PSK authentication and
>> TKIP encryption. What's wrong? What do I need to do?
[snip]
> Are you running wpa_supplicant? If not, you need to to use WPA. WPA is
> not built-in to any Linux wifi-card driver I've ever used.

Yes.

--
David Griffith
(E-Mail Removed) <-- Switch the 'b' and 'u'

On Mon, 09 Oct 2006 05:30:38 GMT, Dave Griffith <(E-Mail Removed)> wrote:
> Stefan Patric <(E-Mail Removed)> wrote:
> > Are you running wpa_supplicant? If not, you need to to use WPA. WPA is
> > not built-in to any Linux wifi-card driver I've ever used.
>
> Yes.

After much googling and flailing around with wpa_supplicant.conf, this
is what worked for me to get the ipw2200 in my laptop to connect to
the Linksys B/G router I have:

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=adm
ap_scan=2
eapol_version=1
fast_reauth=1

network={
ssid=""your-ssid-here"
scan_ssid=0
key_mgmt=WPA-PSK
psk="your-password-here"
proto=WPA
pairwise=TKIP
group=TKIP
}


Mike

--
Michael Zawrotny
Institute of Molecular Biophysics
Florida State University | email: (E-Mail Removed)
Tallahassee, FL 32306-4380 | phone: (850) 644-0069

On Mon, 09 Oct 2006 05:30:38 +0000, Dave Griffith wrote:

> Stefan Patric <(E-Mail Removed)> wrote:
>> On Sat, 07 Oct 2006 21:52:16 +0000, Dave Griffith wrote:
>
>>> After messing around with Debian, I decided to try Ubuntu on this
>>> Thinkpad T42. It looks like Ubuntu has, out of the box, installed the
>>> ipw2200 driver and firmware. I can see the wireless interface just fine
>>> with iwconfig and can connect to open WAPs just fine. However, I cannot
>>> get it to authenticate with a WAP that uses WPA-PSK authentication and
>>> TKIP encryption. What's wrong? What do I need to do?
> [snip]
>> Are you running wpa_supplicant? If not, you need to to use WPA. WPA is
>> not built-in to any Linux wifi-card driver I've ever used.
>
> Yes.

Okay. First, check that your wpa_supplicant.conf file is correct. Now,
assuming that it is: wpa_supplicant has to run after all the
wireless/network configuration stuff during booting (or after, if you do
the networking stuff manually) is done; that is, your system must be
connected to the appropriate AP, have the inet and gateway addresses,
etc., then and only then run wpa_supplicant. Otherwise, it will fail.

Stef