请教无线上网设置问题

[andycai]

我的笔记本的网卡驱动已经安装好，并且我的无线指示灯正常显示，现在还不能上网，请教大家是哪里出错了，我的设置如下，

已在 /etc/network/interfaces 加入，
auto wlan0
iface wlan0 inet dhcp
wireless-essid "steven yuan" #ssid

网络设置如下图，

无线设置

无线设置

无线安全设置

无线安全设置，这里不知道选择哪一项，我知道无线路由是使用 wep 的，我设置了

iwconfig 如下，
$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11abg ESSID:""steven yuan""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=12 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 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

pan0 no wireless extensions.

iwlist 如下，
$ iwlist scanning
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wmaster0 Interface doesn't support scanning.

wlan0 No scan results

pan0 Interface doesn't support scanning.

重启 network 输出如下，
$ sudo /etc/init.d/networking restart
* Reconfiguring network interfaces...
There is already a pid file /var/run/dhclient.wlan0.pid with pid 10693
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.1
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

wmaster0: unknown hardware address type 801
wmaster0: unknown hardware address type 801
Listening on LPF/wlan0/00:19:d2:c8:18:ca
Sending on LPF/wlan0/00:19:d2:c8:18:ca
Sending on Socket/fallback
* if-up.d/mountnfs[eth0]: waiting for interface wlan0 before doing NFS mounts
Internet Systems Consortium DHCP Client V3.1.1
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

wmaster0: unknown hardware address type 801
wmaster0: unknown hardware address type 801
Listening on LPF/wlan0/00:19:d2:c8:18:ca
Sending on LPF/wlan0/00:19:d2:c8:18:ca
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

请问是哪里出了问题？

[andycai]

怎么没有回帖的？

[youngerlak]

没提示你要输入口令吗？