Wifi +kubuntu

bonsoir,
je cherche de l'aide donc merci d'avance.
je suis sous kubuntu 7.10
je cherche comment configurer un réseau san fil pour un ordinateur portable hp 6720s/4
RQ: j'utilise un Edimax " Wireless adsl2+ Router"
voila les résultats de qlq commandes.


DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=7.10
DISTRIB_CODENAME=gutsy
DISTRIB_DESCRIPTION="Ubuntu 7.10"
zidan@poste:~$ lsusb
Bus 006 Device 003: ID 058f:6387 Alcor Micro Corp.
Bus 006 Device 002: ID 058f:6366 Alcor Micro Corp.
Bus 006 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 004: ID 03f0:171d Hewlett-Packard
Bus 001 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
zidan@poste:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile GME965/GLE960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller (rev 0c)
00:19.0 Ethernet controller: Intel Corporation 82562GT 10/100 Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Contoller #4 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller (rev 03)
10:00.0 Network controller: Broadcom Corporation BCM4312 802.11a/b/g (rev 02)
zidan@poste:~$ sudo lshw -C network
[sudo] password for zidan:
*-network
description: Ethernet interface
product: 82562GT 10/100 Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 03
serial: 00:1c:c4:ce:d2:d9
capacity: 100MB/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion=7.3.20-k2-NAPI firmware=1.1-2 latency=0 link=no module=e1000 multicast=yes port=twisted pair
*-network DISABLED
description: Wireless interface
product: BCM4312 802.11a/b/g
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:10:00.0
logical name: eth1
version: 02
serial: 00:00:00:1a:73:fa
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=bcm43xx driverversion=2.6.22-14-generic latency=0 link=no module=bcm43xx multicast=yes wireless=IEEE 802.11b/g
zidan@poste:~$ lsmod
Module Size Used by
i915 25856 2
drm 83348 3 i915
rfcomm 42136 4
l2cap 26240 11 rfcomm
ppdev 10244 0
acpi_cpufreq 10568 1
cpufreq_userspace 5280 0
cpufreq_stats 7232 0
cpufreq_powersave 2688 0
cpufreq_ondemand 9612 1
freq_table 5792 3 acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
cpufreq_conservative 8072 0
video 18060 0
sbs 19592 0
container 5504 0
button 8976 0
dock 10656 0
battery 11012 0
ac 6148 0
nls_iso8859_1 5120 3
nls_cp437 6784 3
vfat 14080 3
fat 54300 1 vfat
parport_pc 37412 0
lp 12580 0
parport 37448 3 ppdev,parport_pc,lp
joydev 11328 0
snd_hda_intel 263712 2
snd_pcm_oss 44672 0
snd_mixer_oss 17664 1 snd_pcm_oss
snd_pcm 80388 2 snd_hda_intel,snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 33152 0
bcm43xx 127336 0
ieee80211softmac 31360 1 bcm43xx
ieee80211 35656 2 bcm43xx,ieee80211softmac
snd_seq_midi 9600 0
snd_rawmidi 25728 1 snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
hci_usb 18332 2
bluetooth 57060 7 rfcomm,l2cap,hci_usb
snd_seq 53232 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24324 2 snd_pcm,snd_seq
snd_seq_device 9228 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
pcspkr 4224 0
ieee80211_crypt 7040 1 ieee80211
psmouse 39952 0
snd 54660 13 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8800 1 snd
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
intel_agp 25620 1
agpgart 35016 3 drm,intel_agp
serio_raw 8068 0
shpchp 34580 0
pci_hotplug 32704 1 shpchp
evdev 11136 5
usb_storage 73024 0
ide_core 116804 1 usb_storage
ext2 67208 1
mbcache 9732 1 ext2
libusual 18448 1 usb_storage
sg 36764 0
sr_mod 17828 0
cdrom 37536 1 sr_mod
sd_mod 30336 6
ata_piix 17540 5
ata_generic 8452 0
libata 125168 2 ata_piix,ata_generic
scsi_mod 147084 5 usb_storage,sg,sr_mod,sd_mod,libata
ehci_hcd 36492 0
uhci_hcd 26640 0
usbcore 138632 6 hci_usb,usb_storage,libusual,ehci_hcd,uhci_hcd
e1000 126272 0
thermal 14344 0
processor 32072 2 acpi_cpufreq,thermal
fan 5764 0
fuse 47124 1
apparmor 40728 0
commoncap 8320 1 apparmor
zidan@poste:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

eth1 IEEE 802.11b/g ESSID:off/any Nickname:"Broadcom 4311"
Mode:Managed Access Point: Invalid
RTS thr:off Fragment thr:off
Link Quality=0/100 Signal level=-256 dBm Noise level=-256 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

zidan@poste:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1C:C4:CE:D2:D9
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0x4020 Memory:e4600000-e4620000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

zidan@poste:~$ iwlist scan
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

eth1 No scan results

zidan@poste:~$ uname -r -m
2.6.22-14-generic i686
zidan@poste:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0


iface eth1 inet bootp

iface eth0 inet dhcp

auto eth1
zidan@poste:~$