Probleme de WIFI

Bonjours a tous

J'ai un petit probleme pour ma configuation wlan0.

J'ai reussi a configurer en ethernet mais le wifi c'est comme même plus dur......

Je voudré me connecter a une Livebox. Je possede une debian sarge (la plus vielle et sans mise a jour)Ma carte est apparament detecter (j'ai mit le pilote windows grace a ndiswrapper)

Mais elle ne marche apparament pas.
Lors d'un "# /etc/init.d/networking restart" (en appuyant sur le bouton de ma liveBox), j'obtient :

"
Setting up IP spoofing protection: rp_filter.
Reconfiguring network interfaces...ifup: interface lo already configured
Internet Software Consortium DHCP Client 2.0pl5
Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
All rights reserved.

Please contribute if you find this software useful.
For info, please visit http://www.isc.org/dhcp-contrib.html

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/wlan0/00:e0:98:ad:53:0b
Sending on LPF/wlan0/00:e0:98:ad:53:0b
Sending on Socket/fallback/fallback-net
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6
"

Et je recoi des lignes styles "DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6" indefiniment.
Comme si je fesait un ping.

Voici ce que me donne donne ma console : (si sa peut vous aider)

debian# iwconfig

lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11b ESSID:off/any Nickname:"192.168.1.5"
Mode:Managed Frequency:2.432 GHz Access Point: 00:00:00:00:00:00
Bit Rate=11 Mb/s Tx-Power:28 dBm Sensitivity=0/3
RTS thr=2346 B Fragment thr=2344 B
Encryption key:7D Security mode:restricted
Power Management:off
Link Quality:100 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:145 Missed beacon:0

sit0 no wireless extensions.

debian# cat /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.1.5
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 192.168.1.1

auto wlan0
iface wlan0 inet dhcp
adress 192.168.1.5
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.1
wireless_essid "ma clé ecrit sur le boite de wandoo"
wieless_mode managed
wireless_key "ma clé ecrit sur le boite de wandoo"
wireless_rate auto
wireless_nick 192.168.1.5

Merci de me donner un coup de main
Salut et bonne continuation

Guillaume