Il y a quelque chose de mal ou pas installé pour ton wifi. Ou le driver n’est pas chargé.
Moi, cela me donne:
[code]debian2:/home/jean-luc# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wmaster0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"Livebox-51b4"
Mode:Managed Frequency:2.457 GHz Access Point: 00:1A:6B:E8:F4:5F
Bit Rate=54 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Encryption key:3B6F-D794-9E20-92AF-E38A-F36E-365E-36FE-F8C6-3DDB-7123-E4CF-E947-D4FD-E33E-B998 [2] Security mode:open
Power Management:off
Link Quality=93/100 Signal level:-40 dBm Noise level=-70 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
debian2:/home/jean-luc# [/code]
Quant-à mon /etc/network/interfaces:
[code]# 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
allow-hotplug eth0
iface eth0 inet dhcp[/code]
Précision: j’ai rebooté sous Debian Lenny pour ces infos. Bon, cela n’aurait pas changé grand chose.