Configurazione wireless

[alwaysnew]

niente da fare...ecco cosa mi dice:

alessandro@ubuntu:~$ sudo ifconfig sit0 down
alessandro@ubuntu:~$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

sit0      no wireless extensions.

wlan0     802.11b/g NIC  ESSID:"alessandro"
          Mode:Managed  Frequency=2.437 GHz  Access Point: 00:30:BD:C1:B0:B6
          Bit Rate:11 Mb/s
          Retry:off   RTS thr=2432 B   Fragment thr:off
          Power Management:off
          Link Quality=72/92  Signal level=54/154  Noise level=161/154
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:514  Invalid misc:0   Missed beacon:0

alessandro@ubuntu:~$ ping 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
From 192.168.2.18 icmp_seq=19 Destination Host Unreachable
From 192.168.2.18 icmp_seq=20 Destination Host Unreachable
From 192.168.2.18 icmp_seq=21 Destination Host Unreachable
From 192.168.2.18 icmp_seq=23 Destination Host Unreachable
From 192.168.2.18 icmp_seq=24 Destination Host Unreachable
From 192.168.2.18 icmp_seq=25 Destination Host Unreachable

--- 192.168.2.1 ping statistics ---
28 packets transmitted, 0 received, +6 errors, 100% packet loss, time 27011ms
, pipe 3