Bonjour

J'ai bien du souci à configurer le wifi de mon portable...
iwconfig m'informe que eth1 est unassociated:

iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

sit0      no wireless extensions.

Warning: Driver for device eth1 has been compiled with version 20
of Wireless Extension, while this program supports up to version 19.
Some things may be broken...

eth1      unassociated  ESSID:"DW-B-200-4d114"  Nickname:"WifiMaison"
          Mode:Managed  Frequency=2.462 GHz  Access Point: 00:90:4B:C1:F1:BA
          Bit Rate:0 kb/s   Tx-Power:14 dBm
          Retry limit:15   RTS thrff   Fragment thrff
          Encryption key:B2E6-6XXXXXXXXXXXXXX   Security modepen
          Power Managementff
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:18881   Missed beacon:0

A rapprocher de:

iwlist eth1 scan
Warning: Driver for device eth1 has been compiled with version 20
of Wireless Extension, while this program supports up to version 19.
Some things may be broken...

eth1      Scan completed :
          Cell 01 - Address: 00:03:C9:7C:AB:71
                    ESSID:"Wanadoo_b491"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Channel:10
                    Encryption keyn
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=38/100  Signal level=-86 dBm  Noise level=-86 dBm
                    Extra: Last beacon: 64ms ago
          Cell 02 - Address: 00:90:4B:C1:F1:BA
                    ESSID:"DW-B-200-4d114"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Channel:11
                    Encryption keyn
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=51/100  Signal level=-78 dBm  Noise level=-78 dBm
                    Extra: Last beacon: 48ms ago

1) Je n'arrive pas à changer le Mode:
iwconfig eth1 mode Master
Error for wireless request "Set Mode" (8B06) :
SET failed on device eth1 ; Invalid argument.

2) Je ne sais pas si le Security mode doit être "open".

3) je suis un peu inquiet du Unknown device 4222 pour le contrôleur réseau:

lspci
00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controllers cc=IDE (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
02:00.0 Network controller: Intel Corporation Unknown device 4222 (rev 02)
04:07.0 CardBus bridge: Texas Instruments Unknown device 8039
04:07.1 FireWire (IEEE 1394): Texas Instruments Unknown device 803a
04:07.2 Mass storage controller: Texas Instruments Unknown device 803b
04:07.3 Class 0805: Texas Instruments Unknown device 803c
04:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10)

Quelqu'un a-t-il une suggestion?
Merci!

Quelques caractéristiques de la configuration de la machine:
Chipset Intel 945GM (centrino)
Fedora Core 5
Module ipw3945 et le daemon ipw3945d