[Primipassi] wireless & WPA

[Filippo]

Ciao!
Sto cercando di utilizzare un router wireless, ma senza successo. Il 
problema è (o mi sembra che sia) l'utilizzo del protocollo WPA.

Ho installato wpasupplicant e letto un po' di documentazione.
Il mio sistema è una Debian Etch con kernel 2.6.15-1-686.
Sembra (/usr/share/doc/wpasupplicant/README.Debian) che la 
configurazione consista solo nel modificare /etc/network/interfaces.

Così ho fatto (tentando diverse varianti). Nel mio 
/etc/network/interfaces ho aggiunto:

iface eth1 inet dhcp
         wpa-ssid NETGEAR
         wpa-proto WPA
         wpa-key-mgmt WPA-PSK
         wpa-psk "********"

ottenendo, al lancio di ifup -v eth1:

Configuring interface eth1=eth1 (inet)
run-parts --verbose /etc/network/if-pre-up.d
run-parts: executing /etc/network/if-pre-up.d/wireless-tools
run-parts: executing /etc/network/if-pre-up.d/wpasupplicant
wpa_supplicant: using default driver type: wpa-driver wext
wpa_supplicant: /sbin/wpa_supplicant -B -P 
/var/run/wpa_supplicant.eth1.pid -i eth1 -D wext -C /var/run/wpa_supplicant
Starting /sbin/wpa_supplicant...
wpa_supplicant: ctrl_interface socket located at 
/var/run/wpa_supplicant/eth1
wpa_supplicant: configuring network block -- 0
wpa_supplicant: wpa-ssid "NETGEAR" -- OK
wpa_supplicant: wpa-psk ***** -- OK
wpa_supplicant: wpa-key-mgmt WPA-PSK -- OK
wpa_supplicant: wpa-proto WPA -- OK
wpa_supplicant: enabling network block 0 -- OK

dhclient3 -pf /var/run/dhclient.eth1.pid -lf 
/var/lib/dhcp3/dhclient.eth1.leases eth1
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:13:ce:99:7a:8a
Sending on   LPF/eth1/00:13:ce:99:7a:8a
Sending on   Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 17
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 4
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
run-parts --verbose /etc/network/if-up.d
run-parts: executing /etc/network/if-up.d/mountnfs
run-parts: executing /etc/network/if-up.d/wpasupplicant

Non so se c'è un problema reale o se, per ignoranza, sbaglio qualcosa di 
banale.

Con dmesg trovo:

ipw2200: Unknown notification: subtype=40,flags=0xa0,size=40
ieee80211_crypt_tkip: disagrees about version of symbol 
ieee80211_register_crypto_ops
ieee80211_crypt_tkip: Unknown symbol ieee80211_register_crypto_ops
ieee80211_crypt_tkip: disagrees about version of symbol 
ieee80211_unregister_crypto_ops
ieee80211_crypt_tkip: Unknown symbol ieee80211_unregister_crypto_ops

Qualcuno può fornirmi lumi?
Grazie!

Filippo