Linux下的iwpriv(iwlist、iwconfig)的简单应用
2015-07-24 11:11
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无线网络飞速发展的今天,许多设备都提供了连接无线网络的功能。
那么Linux下的wifi到底该怎么配置、连接呢??
开始配置之前,我们要说说iw家族。iw是linux下常用的wifi配置工具,网上有相应的库和源码。全名为wirelessTools。
配置wifi模块,并连接相应的无线网络过程:主要使用iwpriv命令
1. 扫描可用的无线网络:
[cpp]
view plaincopyprint?
iwlist wifi-name scanning
其中wifi-name为无线网卡的名字,比如网卡eth0就是系统默认的网卡名字, wifi-name可以用ifconfig查看,一般为ra0。
2. 看扫描到的网络信息,按要连接的网络类型进行配置。以下为扫描到的网络:
[html]
view plaincopyprint?
iwlist ra0 scanning
===>rt_ioctl_giwscan. 11(11) BSS returned, data->length =1427
ra0 Scan completed :
Cell 01 - Address: C4:CA:D9:1D:9E:A0
Protocol:802.11b/g/n
ESSID:""
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality=7/100 Signallevel=-87 dBm Noise
level=-82 dBm
Encryption key:off
Bit Rates:54 Mb/s
Cell 02 - Address: FC:75:16:A1:A9:16
Protocol:802.11b/g/n
ESSID:"jxj_rd"
Mode:Managed
Frequency:2.452 GHz (Channel 9)
Quality=94/100 Signallevel=-53 dBm Noise
level=-92 dBm
Encryption key:on
Bit Rates:54 Mb/s
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: C4:CA:D9:02:2A:70
Protocol:802.11b/g/n
ESSID:""
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality=83/100 Signallevel=-57 dBm Noise
level=-92 dBm
Encryption key:off
Bit Rates:54 Mb/s
Cell 04 - Address: 14:D6:4D:75:CA:9C
Protocol:802.11b/g/n
ESSID:"liangym"
Mode:Managed
Frequency:2.472 GHz (Channel 13)
Quality=100/100 Signallevel=-27 dBm Noise
level=-92 dBm
Encryption key:on
Bit Rates:54 Mb/s
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
如上:ESSID项的值即为无线网络的名字,如上的“jxj_rd”等。如果值为空,说明在无线路由勾选了隐藏ESSID的选项。
ESSID是很关键的,如果被隐藏了,也不是不能连接,而是需要破解,用到其他的工具,非常麻烦。至于如何破解,不是本文叙述的内容,有兴趣的朋友可以网上搜索。
得到了网络的信息,接下来就是配置连接选项了。以连接"jxj_rd"为例,我们看看具体的过程:
(1) 设置要连接的网络类型:
[html]
view plaincopyprint?
iwpriv wlan0 set NetworkType=Infra
(2) 设置要连接的无线网络的安全模式:
[html]
view plaincopyprint?
iwpriv wlan0 set AuthMode=WPA2PSK
(3) 设置网络加密方式:(CCMP即为AES)
[html]
view plaincopyprint?
iwpriv wlan0 set EncrypType=TKIP
iwpriv wlan0 set EncrypType=AES
(4) 设置连接时的密码: ********为加密网络的密码
[html]
view plaincopyprint?
iwpriv wlan0 set WPAPSK=*******
(5) 连接该网络:有两种方式:
<1> 用iwpriv命令
[html]
view plaincopyprint?
iwpriv wlan0 set SSID=jxj_rd
<2> 用iwconfig命令
[html]
view plaincopyprint?
iwconfig wlan0 essid jxj_rd
至此,如果密码正确,就可以连接上网络jxj_rd了。如果你不放心,可以用命令查看状态:
[html]
view plaincopyprint?
iwpriv ra0 connStatus
当然,你也可以用iwconfig命令查看状态,这里不再赘述。
/article/2418930.html
那么Linux下的wifi到底该怎么配置、连接呢??
开始配置之前,我们要说说iw家族。iw是linux下常用的wifi配置工具,网上有相应的库和源码。全名为wirelessTools。
配置wifi模块,并连接相应的无线网络过程:主要使用iwpriv命令
1. 扫描可用的无线网络:
[cpp]
view plaincopyprint?
iwlist wifi-name scanning
iwlist wifi-name scanning
其中wifi-name为无线网卡的名字,比如网卡eth0就是系统默认的网卡名字, wifi-name可以用ifconfig查看,一般为ra0。
2. 看扫描到的网络信息,按要连接的网络类型进行配置。以下为扫描到的网络:
[html]
view plaincopyprint?
iwlist ra0 scanning
===>rt_ioctl_giwscan. 11(11) BSS returned, data->length =1427
ra0 Scan completed :
Cell 01 - Address: C4:CA:D9:1D:9E:A0
Protocol:802.11b/g/n
ESSID:""
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality=7/100 Signallevel=-87 dBm Noise
level=-82 dBm
Encryption key:off
Bit Rates:54 Mb/s
Cell 02 - Address: FC:75:16:A1:A9:16
Protocol:802.11b/g/n
ESSID:"jxj_rd"
Mode:Managed
Frequency:2.452 GHz (Channel 9)
Quality=94/100 Signallevel=-53 dBm Noise
level=-92 dBm
Encryption key:on
Bit Rates:54 Mb/s
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: C4:CA:D9:02:2A:70
Protocol:802.11b/g/n
ESSID:""
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality=83/100 Signallevel=-57 dBm Noise
level=-92 dBm
Encryption key:off
Bit Rates:54 Mb/s
Cell 04 - Address: 14:D6:4D:75:CA:9C
Protocol:802.11b/g/n
ESSID:"liangym"
Mode:Managed
Frequency:2.472 GHz (Channel 13)
Quality=100/100 Signallevel=-27 dBm Noise
level=-92 dBm
Encryption key:on
Bit Rates:54 Mb/s
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
iwlist ra0 scanning ===>rt_ioctl_giwscan. 11(11) BSS returned, data->length = 1427 ra0 Scan completed : Cell 01 - Address: C4:CA:D9:1D:9E:A0 Protocol:802.11b/g/n ESSID:"" Mode:Managed Frequency:2.412 GHz (Channel 1) Quality=7/100 Signal level=-87 dBm Noise level=-82 dBm Encryption key:off Bit Rates:54 Mb/s Cell 02 - Address: FC:75:16:A1:A9:16 Protocol:802.11b/g/n ESSID:"jxj_rd" Mode:Managed Frequency:2.452 GHz (Channel 9) Quality=94/100 Signal level=-53 dBm Noise level=-92 dBm Encryption key:on Bit Rates:54 Mb/s IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : TKIP CCMP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : TKIP CCMP Authentication Suites (1) : PSK Cell 03 - Address: C4:CA:D9:02:2A:70 Protocol:802.11b/g/n ESSID:"" Mode:Managed Frequency:2.462 GHz (Channel 11) Quality=83/100 Signal level=-57 dBm Noise level=-92 dBm Encryption key:off Bit Rates:54 Mb/s Cell 04 - Address: 14:D6:4D:75:CA:9C Protocol:802.11b/g/n ESSID:"liangym" Mode:Managed Frequency:2.472 GHz (Channel 13) Quality=100/100 Signal level=-27 dBm Noise level=-92 dBm Encryption key:on Bit Rates:54 Mb/s IE: WPA Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK
如上:ESSID项的值即为无线网络的名字,如上的“jxj_rd”等。如果值为空,说明在无线路由勾选了隐藏ESSID的选项。
ESSID是很关键的,如果被隐藏了,也不是不能连接,而是需要破解,用到其他的工具,非常麻烦。至于如何破解,不是本文叙述的内容,有兴趣的朋友可以网上搜索。
得到了网络的信息,接下来就是配置连接选项了。以连接"jxj_rd"为例,我们看看具体的过程:
(1) 设置要连接的网络类型:
[html]
view plaincopyprint?
iwpriv wlan0 set NetworkType=Infra
iwpriv ra0 set NetworkType=Infra
(2) 设置要连接的无线网络的安全模式:
[html]
view plaincopyprint?
iwpriv wlan0 set AuthMode=WPA2PSK
iwpriv ra0 set AuthMode=WPA2PSK
(3) 设置网络加密方式:(CCMP即为AES)
[html]
view plaincopyprint?
iwpriv wlan0 set EncrypType=TKIP
iwpriv wlan0 set EncrypType=AES
iwpriv ra0 set EncrypType=TKIP
(4) 设置连接时的密码: ********为加密网络的密码
[html]
view plaincopyprint?
iwpriv wlan0 set WPAPSK=*******
iwpriv ra0 set WPAPSK=*******
(5) 连接该网络:有两种方式:
<1> 用iwpriv命令
[html]
view plaincopyprint?
iwpriv wlan0 set SSID=jxj_rd
iwpriv ra0 set SSID=jxj_rd
<2> 用iwconfig命令
[html]
view plaincopyprint?
iwconfig wlan0 essid jxj_rd
iwconfig ra0 essid jxj_rd
至此,如果密码正确,就可以连接上网络jxj_rd了。如果你不放心,可以用命令查看状态:
[html]
view plaincopyprint?
iwpriv ra0 connStatus
iwpriv ra0 connStatus
当然,你也可以用iwconfig命令查看状态,这里不再赘述。
/article/2418930.html
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