[glux] connessione wireless con Ubuntu

Cristian kikkocristian@tiscali.it
Gio 13 Set 2007 14:07:34 CEST


Ciao,
ho installato ieri sera sul mio portatile (HP Compaq nx7300), Ubuntu 7.04... con l'installazione nessun problema... è bastato togliere un o' di spazio a Win e poi ha fatto tutto Ubuntu (tra l'altro è di una velocità estrema!). Il problema è che vorrei poter accedere ad in ternet in wireless: ho il modem/router di Alice (Alice Gate w2+)... per inciso,  se collego il cavo eth al portatile nessun problema.
connette in automatico in un microsec.
Ho fatto lshw e mi mostra:
cristian@cristian-laptop:~$ sudo lshw -C network
  *-network              
       description: Wireless interface
       product: Dell Wireless 1390 WLAN Mini-PCI Card
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@10:00.0
       logical name: eth1
       version: 01
       serial: 00:1a:73:28:07:19
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ndiswrapper+bcmw15
driverversion= 1.47+Broadcom,10/12/2006, 4.100. latency= 0 link=no multicast=yes wireless=IEEE 802.11g
       resources: iomemory:f4000000-f4003fff irq:17
  *-network
       description: Ethernet interface
       product: BCM4401-B0 100Base-TX
       vendor: Broadcom Corporation
       physical id: e
       bus info: pci@02:0e.0
       logical name: eth0
       version: 02
       serial: 00:17:a4:d0:0b:d8
       size: 100MB/s
       capacity: 100MB/s
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical mii 10bt10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=1.01 duplex full ip= 192.168.1.179 latency=64 link=yes multicast=yes port=twisted pair speed=100MB/s
       resources: iomemory:f4108000-f4109fff irq:16

la prima dovrebbe essere la rete wireless e la seconda quella eth (con la quale sono connesso ora...)
il comando "sudo lspci -v | less" mi da
10:00.0 Network controller: Broadcom Corporation Dell Wireless 1390 WLAN Mini-PCI Card (rev 01)
        Subsystem: Hewlett-Packard Company Unknown device 1364
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at f4000000 (32-bit, non-prefetchable) [size=3D16K]
        Capabilities: [40] Power Management version 2
        Capabilities: [58] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
        Capabilities: [d0] Express Legacy Endpoint IRQ 0

Mi sembra che la scheda venga riconosciuta correttamente... quindi...funziona?

cristian@cristian-laptop:~$ sudo iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11g  ESSID:off/any 
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not- Associated
          Bit Rate=54 Mb/s   Tx-Power:32 dBm RTS thr=2347 B   Fragment thr=2346 B Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

cristian@cristian-laptop:~$ iwlist scanning
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

eth1      Scan completed :
          Cell 01 - Address: 00:13:C8:D7:79:06
                    ESSID:"Alice-25391854"
                    Protocol:IEEE 802.11g
                    Mode:Managed
                    Frequency:2.412 GHz (Channel 1)
                    Quality:100/100  Signal level:-31 dBm  Noise level: -96 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
                    Extra:bcn_int=100
                    Extra:atim=0
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK

In effetti mi riconosce la rete...

ora provo a fare
cristian@cristian-laptop:~$ sudo iwconfig eth1 mode managed channel 1 essid Alice-25391854
poi ricontrollo con
cristian@cristian-laptop:~$ iwconfig eth1
eth1      IEEE 802.11g  ESSID:off/any
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated
          Bit Rate=54 Mb/s   Tx-Power:32 dBm
          RTS thr=3D2347 B   Fragment thr=3D2346 B
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

e mi dice (ancora) "Access Point: Not-Associated  " che... da quanto ho capito vuol dire che non sono connesso.
La connessione dovrebbe essere protetta da una chiave WPA (WPA E WPA-PSK sono sinonimi... vero?)... e quindi forse non funziona per quello... provo a installare wpasupplicant e scrivo wpa_supplicant.conf

cristian@cristian-laptop:~$ cat /etc/wpa_supplicant.conf
    network=3D{   =20
    ssid=3DAlice-25391854
    psk=3D"***************" [messa tra virgolette perch=C3=A8 la chiave é in ascii]
    key_mgmt=WPA-PSK
    pairwise=CCMP TKIP
    }

faccio partire wpa_supplicant
cristian@cristian-laptop:~$ sudo wpa_supplicant -Dndiswrapper -ieth1 -c /etc/wpa_supplicant.conf -dd -B
Initializing interface 'eth1' conf '/etc/wpa_supplicant.conf' driver 'ndiswrapper' ctrl_interface 'N/A' bridge 'N/A' Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf'
Reading configuration file '/etc/wpa_supplicant.conf'
Line: 1 - start of a new network block
Line 2: failed to parse ssid 'Alice-25391854'.
Line 2: failed to parse ssid 'Alice-25391854'.
PSK (ASCII passphrase) - hexdump_ascii(len=24): [REMOVED]
key_mgmt: 0x2
proto: 0x1
pairwise: 0x18
PSK (from passphrase) - hexdump(len=32): [REMOVED]
Line 7: failed to parse network block.
Failed to read or parse configuration '/etc/wpa_supplicant.conf'.
Failed to add interface eth1
Cancelling scan request
... la domanda é perché? Cosa c'è che non va?
Grazie in anticipo per l'aiuto.... (scusate la lunghezza del post)
Ciao

Cristian









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