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ubuntu命令行装无线网卡

2010年12月24日 IT运维 ⁄ 共 3829字 暂无评论 ⁄ 被围观 853+

1.插入无线网卡

查看一下网络设置,看看是否多出来了两个设备

osc@osc-opensoce:~$ ifconfigath0 Link encap:以太网 硬件地址 00:19:e0:85:73:70 inet 地址:192.168.1.104 广播:255.255.255.255 掩码:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1 接收数据包:953 错误:0 丢弃:0 过载:0 帧数:0 发送数据包:1159 错误:0 丢弃:0 过载:0 载波:0 碰撞:0 发送队列长度:0 接收字节:602879 (588.7 KB) 发送字节:282563 (275.9 KB)wifi0 Link encap:未指定 硬件地址 00-19-E0-85-73-70-00-00-00-00-00-00-00-00-00-00 UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1 接收数据包:18704 错误:0 丢弃:0 过载:0 帧数:7185 发送数据包:2060 错误:6 丢弃:0 过载:0 载波:0 碰撞:0 发送队列长度:199 接收字节:2828917 (2.6 MB) 发送字节:351821 (343.5 KB) 中断:18

只要看见ath0就说明网卡设备设别出来了,ath0就是无线网卡设备的名字了,至于那个wifi0是个什么东 东,不好意思,本人才疏学浅不知道。

2.确认无线网卡的型号

osc@osc-opensoce:~$ lspci......0b:00.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)

上面的 Atheros Communications Inc. AR2413 802.11bg NIC 就是无线网卡芯片的型号了,其中 Atheros是芯片制造商的名字。

3.打开无线网卡电源

osc@osc-opensoce:~$ sudo iwconfig ath0 txpower onjim@osc-opensoce:~$

4.检索区域内的无线网络

osc@osc-opensoce:~$ iwlist ath0 scanath0 Scan completed : Cell 01 - Address: 00:1D:0F:4D:8B:E4 ESSID:"TP-LINK" Mode:Master Frequency:2.437 GHz (Channel 6) Quality=28/70 Signal level=-67 dBm Noise level=-95 dBm Encryption key:off Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s 48 Mb/s; 54 Mb/s Extra:bcn_int=100 Extra:ath_ie=dd0900037f01010008ff7f Cell 02 - Address: 00:21:27:3A:37:0A ESSID:"TP-LINK" Mode:Master Frequency:2.437 GHz (Channel 6) Quality=12/70 Signal level=-83 dBm Noise level=-95 dBm Encryption key:on Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s 48 Mb/s; 54 Mb/s Extra:bcn_int=100 Extra:ath_ie=dd0900037f01010008ff7f Cell 03 - Address: 00:18:39:A6:98:E2 ESSID:"linksys" Mode:Master Frequency:2.437 GHz (Channel 6) Quality=3/70 Signal level=-92 dBm Noise level=-95 dBm Encryption key:on Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s 48 Mb/s; 54 Mb/s Extra:bcn_int=100 IE: WPA Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK

我附近有三个无线AP,ESSID 所标记的就是无线AP的名字了,其中有两个无线AP都叫做 TP-LINK,另一个叫linksys,记下这几个无线AP的名字,一会得挨个试。

5. 连接无线AP

osc@osc-opensoce:~$ sudo iwconfig ath0 essid "linksys"osc@osc-opensoce:~$ ifconfig

不管连上还是连不上都不会给出任何提示,到底连没连上还需要查看一下才行

ath0 IEEE 802.11g ESSID:"linksys" Nickname:"" Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:18 dBm Sensitivity=1/1 Retry:off RTS thr:off Fragment thr:off Power Management:off Link Quality=0/70 Signal level=-95 dBm Noise level=-95 dBm Rx invalid nwid:8172 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
osc@osc-opensoce:~$ sudo iwconfig ath0 essid "TP-LINK"osc@osc-opensoce:~$ ifconfig

执行后再查看一下接入状态

osc@osc-opensoce:~$ iwconfig ath0ath0 IEEE 802.11g ESSID:"TP-LINK" Nickname:"" Mode:Managed Frequency:2.437 GHz Access Point: 00:1D:0F:4D:8B:E4 Bit Rate:36 Mb/s Tx-Power:18 dBm Sensitivity=1/1 Retry:off RTS thr:off Fragment thr:off Power Management:off Link Quality=26/70 Signal level=-69 dBm Noise level=-95 dBm Rx invalid nwid:8268 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0

ok,连上了。

注意:如果连接AP需要密码,而你确实也知道AP的密码,那么可以用下面的办法连接
假设密码是 123456789,密码需要四位一组用”-“分开。

osc@osc-opensoce:~$ sudo iwconfig ath0 essid "TP-LINK" key 1234-5678-9

6.启用无线网卡

osc@osc-opensoce:~$ sudo ifconfig ath0 up

7.设置无线网卡采用dhcp自动获取ip

osc@osc-opensoce:~$ sudo dhclient ath0Internet Systems Consortium DHCP Client V3.0.6Copyright 2004-2007 Internet Systems Consortium.All rights reserved.For info, please visit wifi0: unknown hardware address type 801wifi0: unknown hardware address type 801Listening on LPF/ath0/00:19:e0:85:73:70Sending on LPF/ath0/00:19:e0:85:73:70Sending on Socket/fallbackDHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 6DHCPOFFER of 192.168.1.104 from 192.168.1.1DHCPREQUEST of 192.168.1.104 on ath0 to 255.255.255.255 port 67DHCPACK of 192.168.1.104 from 192.168.1.1bound to 192.168.1.104 -- renewal in 3125 seconds. 

现在就可以拔掉网线,使用无线网卡了。

8. 断开网络

如果需要断开网络,可以使用下面的命令

osc@osc-opensoce:~$ sudo ifconfig ath0 down
【上篇】【下篇】

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