我使用的是 Ubuntu 12.10，由于某种原因，当我的无线连接设置为使用 WPA/WPA2 Personal 时，它使用的是 WEP。
另外，我应该提到，我以前使用的是 12.04，并且无线连接会自动创建使用 WEP 的不同无线连接配置文件。它显示为 Siddhion1，我总是必须将其从我的网络连接列表中删除。所以似乎这个问题已经转移到 12.10，可能是因为我升级了，没有进行全新安装？
无论如何，正如您从我的网络连接“Siddhion”的以下屏幕截图中看到的那样，它的安全性设置为 WPA 和 WPA2 Personal。
当 Siddhion 自动连接到网络时，窗口显示 Siddhion 的安全性实际上是 WEP（如下面的屏幕截图所示）
显然这是一个大问题，因为 WEP 的安全性很差。我运行了以下诊断命令，得到了以下结果。
hwinfo --netcard
max@siddhion:~$ hwinfo --netcard
> hal.1: read hal dataprocess 29274: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/dbus-errors.c line 282.
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
26: PCI 200.0: 0282 WLAN controller
[Created at pci.318]
Unique ID: y9sn.ReL4kyurUv5
Parent ID: z8Q3.1xIyAHITO_C
SysFS ID: /devices/pci0000:00/0000:00:1c.0/0000:02:00.0
SysFS BusID: 0000:02:00.0
Hardware Class: network
Model: "Intel Wireless WiFi Link 5100"
Vendor: pci 0x8086 "Intel Corporation"
Device: pci 0x4232 "Wireless WiFi Link 5100"
SubVendor: pci 0x8086 "Intel Corporation"
SubDevice: pci 0x1201
Driver: "iwlwifi"
Driver Modules: "iwlwifi"
Device File: wlan0
Features: WLAN
Memory Range: 0xc0000000-0xc0001fff (rw,non-prefetchable)
IRQ: 45 (1214675 events)
HW Address: 00:22:fa:2c:3d:4c
Link detected: yes
WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 5.18 5.2 5.22 5.24 5.26 5.28 5.3 5.32 5.5 5.52 5.54 5.56 5.58 5.6 5.62 5.64 5.66 5.68 5.7
WLAN encryption modes: WEP40 WEP104 TKIP CCMP
WLAN authentication modes: open sharedkey wpa-psk wpa-eap
Module Alias: "pci:v00008086d00004232sv00008086sd00001201bc02sc80i00"
Driver Info #0:
Driver Status: iwlwifi is active
Driver Activation Cmd: "modprobe iwlwifi"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #15 (PCI bridge)
27: PCI 300.0: 0200 Ethernet controller
[Created at pci.318]
Unique ID: rBUF.5Jtq7eCSpW3
Parent ID: qTvu.3mBS8QXtRlD
SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:03:00.0
SysFS BusID: 0000:03:00.0
Hardware Class: network
Model: "Marvell 88E8040 PCI-E Fast Ethernet Controller"
Vendor: pci 0x11ab "Marvell Technology Group Ltd."
Device: pci 0x4355 "88E8040 PCI-E Fast Ethernet Controller"
SubVendor: pci 0x1179 "Toshiba America Info Systems"
SubDevice: pci 0xff50
Revision: 0x12
Driver: "sky2"
Driver Modules: "sky2"
Device File: eth0
Memory Range: 0xc0500000-0xc0503fff (rw,non-prefetchable)
I/O Ports: 0x3000-0x3fff (rw)
IRQ: 44 (1 event)
HW Address: 00:23:8b:80:9a:2c
Link detected: no
Module Alias: "pci:v000011ABd00004355sv00001179sd0000FF50bc02sc00i00"
Driver Info #0:
Driver Status: sky2 is active
Driver Activation Cmd: "modprobe sky2"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #16 (PCI bridge)
系统配置
max@siddhion:~$ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11abgn ESSID:"Siddhion"
Mode:Managed Frequency:2.462 GHz Access Point: 00:AA:AA:10:12:EB
Bit Rate=11 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-31 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:184 Missed beacon:0
sudo iwlist wlan0 扫描
max@siddhion:~$ sudo iwlist wlan0 scan
wlan0 Scan completed :
Cell 01 - Address: 00:AA:AA:10:12:EB
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=70/70 Signal level=-35 dBm
Encryption key:on
ESSID:"Siddhion"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Mode:Master
Extra:tsf=00000000a95b3e1b
Extra: Last beacon: 56ms ago
IE: Unknown: 00085369646468696F6E
IE: Unknown: 010482848B96
IE: Unknown: 03010B
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD0700E04C01020300
另外，我运行wpa_gui查看 WPA 是否被识别，我看到的状态消息是
无法从 wpa_supplicant 获取状态
如下图所示
有人知道如何让 Ubuntu 仅使用 WPA 和 WPA2 安全性吗？