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[debian-users:45484] Re: 無線LAN

伊藤です。

武藤さんの言われたとおり, module-assistantを使って	
ndiswrapperをインストールすることができました。

iwconfig, iwlist wlan0 scanning, iwlist wlan0 channelの実行結果
#iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      no wireless extensions.

wlan0     IEEE 802.11g  ESSID:off/any
          Mode:Managed  Frequency:2.462 GHz  Access Point: Not-Associated
          Bit Rate:54 Mb/s   Tx-Power:25 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

sit0      no wireless extensions.

#iwlist wlan0 sanning
wlan0     Scan completed :
          Cell 01 - Address: 00:0D:0B:CC:9B:57
                    ESSID:"3E2395156BD400575ACC477E085561D0"
                    Protocol:IEEE 802.11g
                    Mode:Managed
                    Frequency:2.462 GHz (Channel 11)
                    Quality:0/100  Signal level:-47 dBm  Noise level:-256 dBm
                    Encryption key:on
                    Bit Rate:1 Mb/s
                    Bit Rate:2 Mb/s
                    Bit Rate:5.5 Mb/s
                    Bit Rate:11 Mb/s
                    Bit Rate:6 Mb/s
                    Bit Rate:9 Mb/s
                    Bit Rate:12 Mb/s
                    Bit Rate:18 Mb/s
                    Bit Rate:24 Mb/s
                    Bit Rate:36 Mb/s
                    Bit Rate:48 Mb/s
                    Bit Rate:54 Mb/s
                    Extra:bcn_int=100
                    Extra:atim=0
                    Extra:wpa_ie=dd180050f20101000050f20401000050f20401000050f2020000

#wilst wlan0 channel
wlan0     14 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Channel 14 : 2.484 GHz
          Current Frequency:2.462 GHz (Channel 11)

設定を完了して, /etc/init.d/networkingを実行すると以下の
エラーが表示されて, IPアドレスの習得ができませんでした。

* /etc/network/options is deprecated.
Setting up IP spoofing protection...done (rp_filter).
Configuring 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
eth1: unknown hardware address type 24
sit0: unknown hardware address type 776
eth1: unknown hardware address type 24
Listening on LPF/wlan0/00:0d:0b:d1:5d:95
Sending on   LPF/wlan0/00:0d:0b:d1:5d:95
Sending on   Socket/fallback/fallback-net
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
No DHCPOFFERS received.
No working leases in persistent database.

Exiting.

Failed to bring up wlan0.
done.

/etc/network/interfacesの設定は以下のとおりになっています。

# Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or
# /usr/share/doc/ifupdown/examples for more information.

auto lo
iface lo inet loopback


#auto eth0
#iface eth0 inet dhcp

auto wlan0
iface wlan0 inet dhcp
#        wireless_essid 3E2395156BD400575ACC477E085561D0
#        wireless_key s:secret

以上

もしかして, /etc/network/interfaceの記述が間違っているのでしょうか。