ubuntu server 14.04 无线网卡配置

1. 网卡类型

root@spch2008-server:~# lspci -vnn -d 14e4:
04:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)

2. 工具下载

http://bues.ch/b43/fwcutter/b43-fwcutter-018.tar.bz2

make

make install

3. 驱动下载

http://www.lwfinger.com/b43-firmware/broadcom-wl-5.100.138.tar.bz2

4. 安装驱动

b43-fwcutter -w /lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o

5. 加载驱动

modprobe b43

6. wifi链接

   配置无线网卡 /etc/network/interface

   auto wlan0
   iface wlan0 inet dhcp
   dns-namservers 192.168.1.1 8.8.8.8   #192.168.1.1 为无线路由器网关，8.8.8.8为谷歌dns

链接路由器

root@spch2008-server:~# wpa_passphrase ssid passwd > passwd
root@spch2008-server:~# wpa_supplicant -B -i wlan0 -Dwext -c ./passwd
root@spch2008-server:~# iwconfig wlan0
root@spch2008-server:~# dhclient wlan0

验证链接情况

root@spch2008-server:~# iwconfig
wlan0     IEEE 802.11abg  ESSID:"TJing"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 08:10:79:4A:72:B6   
          Bit Rate=54 Mb/s   Tx-Power=200 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-38 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

测试网络

root@spch2008-server:~# ping www.baidu.com
PING www.a.shifen.com (119.75.218.70) 56(84) bytes of data.
64 bytes from 119.75.218.70: icmp_seq=1 ttl=57 time=4.17 ms
64 bytes from 119.75.218.70: icmp_seq=2 ttl=57 time=3.35 ms

参考：

http://www.linuxidc.com/Linux/2014-04/100115.htm

http://blog.csdn.net/judwenwen2009/article/details/17026389