如何檢查Linux中的WEP身份驗證是否失敗

Question

如果在開放模式下使用WEP安全性，那麼運行Linux內核的客戶端如何能夠檢查由於密鑰錯誤而導致的身份驗證失敗，但由於它是WEP開放模式。

Answer 1

你會在wpa_supplican的日誌中看到這個。它看起來在某種程度上像這樣（對不起，只是隨便舉個例子我在網上查到）：

[ 778.327092] wlan0: associated 
[ 778.332503] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 
[ 788.334222] wlan0: disassociating from 00:1c:f0:b1:80:6a by local choice (reason=3) 
[ 788.341433] cfg80211: Calling CRDA for country: US 
[ 788.342348] wlan0: deauthenticating from 00:1c:f0:b1:80:6a by local choice (reason=3) 
[ 789.122029] wlan0: no IPv6 routers present 
[ 789.263341] wlan0: authenticate with 00:1c:f0:b1:80:6a (try 1) 
[ 789.463049] wlan0: authenticate with 00:1c:f0:b1:80:6a (try 2) 
[ 789.663048] wlan0: authenticate with 00:1c:f0:b1:80:6a (try 3) 
[ 789.863057] wlan0: authentication with 00:1c:f0:b1:80:6a timed out 

正如你可以從上面的日誌中看到，客戶端已成功關聯（778.327092），但未能在認證階段（ 789.863057）。

您也可以使用* wpa_cli *和其「狀態」命令：

> status 
bssid=00:1c:f0:b1:80:6a 
ssid=KLUK2 
id=1 
mode=station 
pairwise_cipher=NONE 
group_cipher=NONE 
key_mgmt=IEEE 802.1X (no WPA) 
wpa_state=ASSOCIATED 
Supplicant PAE state=CONNECTING 
suppPortStatus=Unauthorized 
EAP state=IDLE 
<2>Authentication with 00:1c:f0:b1:80:6a timed out. 
> <2>CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 
> <2>CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 
> <2>CTRL-EVENT-SCAN-RESULTS 
> <2>Trying to authenticate with 00:1c:f0:b1:80:6a (SSID='KLUK2' freq=2437 MHz) 
<2>CTRL-EVENT-SCAN-RESULTS 
<2>CTRL-EVENT-BSS-REMOVED 0 00:1d:19:cd:43:a1 
> <2>CTRL-EVENT-BSS-REMOVED 1 00:24:fe:82:ea:d9 
> <2>CTRL-EVENT-BSS-REMOVED 2 00:04:0e:8e:a7:fe 
> <2>CTRL-EVENT-SCAN-RESULTS