centos6.5安装使用usb无线网卡并配置静态ip
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系统:centos6.5
usb网卡:EDUP USB无线网卡 EP-N8508GS
1、检查无线网卡设备
#lsusbBus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hubBus 001 Device 002: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter上面最后一行说明该网卡已经被系统检测到了
2、检查内核是否正确加载到该网卡模块
# iwconfiglo no wireless extensions.eth0 no wireless extensions.wlan0 IEEE 802.11bgn ESSID:"TP-LINK_25D5" Mode:Managed Frequency:2.412 GHz Access Point: 88:25:93:6E:25:D5 Bit Rate=72.2 Mb/s Tx-Power=20 dBm Retry short limit:7 RTS thr=2347 B 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上面显示的wlan0这块内容,说明内核已加载到该网卡模块,如果没有显示无线网卡的标识(这里是wlan0),那么需要去安装相应的网卡驱动程序
3、开启无线网卡,利用iwlist命令探测无线网络
# ifconfig wlan0 up# iwlist wlan0 scanwlan0 Scan completed : Cell 01 - Address: E8:39:DF:C0:BC:A4 Channel:1 Frequency:2.412 GHz (Channel 1) Quality=54/70 Signal level=-56 dBm Encryption key:on ESSID:"123" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s 24 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s Mode:Master Extra:tsf=00000002d736346b Extra: Last beacon: 218ms ago IE: Unknown: 0003313233 IE: Unknown: 010882848B962430486C IE: Unknown: 030101 IE: Unknown: 0706555320010E14 IE: Unknown: 200100 IE: Unknown: 23021000 IE: Unknown: 2A0100 IE: Unknown: 2F0100 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 32040C121860 IE: Unknown: 2D1A2C1817FF00000000000000000000000000000000000000000000 IE: Unknown: 3D1601080400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F080100000000000040 IE: Unknown: DD090010180201000C0000 IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00 Cell 02 - Address: 88:25:93:6E:25:D5 Channel:1 Frequency:2.412 GHz (Channel 1) Quality=70/70 Signal level=-40 dBm Encryption key:off ESSID:"TP-LINK_25D5" 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 Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=000001fba281937d Extra: Last beacon: 136ms ago IE: Unknown: 000C54502D4C494E4B5F32354435 IE: Unknown: 010882848B960C121824 IE: Unknown: 030101 IE: Unknown: 2A0100 IE: Unknown: 32043048606C IE: Unknown: 2D1AAC011BFFFFFF0000000000000000000100000000000000000000 IE: Unknown: 3D1601050500000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F080100000000000040 IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F这里使用扫描到的Cell 02无线网络,也就是“TP-LINK_25D5”是本无线网卡下面需要连接的无线网络名称
注意:这里我的无线网卡没有设置密码
4、连接无线网络,并使用iwconfig查看连接是否成功
# iwconfig wlan0 essid "TP-LINK_25D5"# iwconfiglo no wireless extensions.eth0 no wireless extensions.wlan0 IEEE 802.11bgn ESSID:"TP-LINK_25D5" Mode:Managed Frequency:2.412 GHz Access Point: 88:25:93:6E:25:D5ESSID显示为TP-LINK_25D5,说明连接成功
5、设置无线网卡ip参数
# vim /etc/sysconfig/network-scripts/ifcfg-wlan0DEVICE=wlan0NAME=wlan0HWADDR=e8:4e:06:35:59:adTYPE=EthernetBOOTPROTO=noneONBOOT=yesESSID=TP-LINK_25D5IPV6INIT=noIPV4_FAILURE_FATAL=yesNETMASK=255.255.255.0GATEWAY=10.79.32.1IPADDR=10.79.32.27NM_CONTROLLED=yesUSERCTL=noPEERDNS=yes
6、重新启动网络服务
# /etc/init.d/network restartShutting down interface eth0: [ OK ]Shutting down interface wlan0: [ OK ]Shutting down loopback interface: [ OK ]Bringing up loopback interface: [ OK ]Bringing up interface eth0: Determining if ip address 10.79.32.22 is already in use for device eth0... [ OK ]Bringing up interface wlan0: Determining if ip address 10.79.32.27 is already in use for device wlan0... [ OK ]
参考资料:
《鸟哥的linux私房菜-服务器架设篇》
ifconfig、ifup与ifdown命令用法---http://www.jbxue.com/LINUXjishu/21350.html
centos无线网卡配置----http://www.2cto.com/os/201401/273745.html
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