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Centos 连接WIFI

时间:2016-07-17 00:51来源:blog.csdn.net 作者:vincentwistron的专栏 举报 点击:
(1) iw dev 查看无线网卡
[root@localhost 桌面]# iw dev
phy#0
    Interface wlp4s0
        ifindex 3
        wdev 0x1
        addr 1c:4b:d6:91:83:0a
        type managed
(2) ip link set *** up 开启无线网卡
[root@localhost 桌面]# ip link set wlp4s0 up
(3)ip link show *** 显示无线网卡的基本信息
[root@localhost 桌面]# ip link show wlp4s0
3: wlp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT qlen 1000
    link/ether 1c:4b:d6:91:83:0a brd ff:ff:ff:ff:ff:ff
(4) iw *** link 显示无线网卡连接情况
[root@localhost 桌面]# iw wlp4s0 link
Not connected.
(5) iw *** scan|grep SSID 查看当前局域网中无线网络SSID
[root@localhost 桌面]# iw wlp4s0 scan|grep SSID
    SSID: TP-LINK_AA
    SSID: TP-202
    SSID: TP-LINK_Allen
    SSID: Tenda_zzzz
    SSID: \xba\xa3\xd4\xf4\xcd\xf5\xc2\xb7\xb7\xc9
    SSID: WIFI123
    SSID: MERCURY_435C
    SSID: xiaoniu
    SSID: Tenda
    SSID: xxxxx
(6)wpa_supplicant -B -i *** -c<(wpa_passphrase "SSID_XXX" "PWD_XXX") 连接无线网络, SSID_XXX 需要连接的wifi SSID ,PWD_XXX wifi 密码
[root@localhost 桌面]# wpa_supplicant -B -i wlp4s0 -c<(wpa_passphrase "MERCURY_435C" "78787878")
Successfully initialized wpa_supplicant
(7) dhclient 分配IP
[root@localhost 桌面]# dhclient wlp4s0
[root@localhost 桌面]# ip addr show wlp4s0
3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 1c:4b:d6:91:83:0a brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.105/24 brd 192.168.1.255 scope global dynamic wlp4s0
       valid_lft 172788sec preferred_lft 172788sec
    inet6 fe80::1e4b:d6ff:fe91:830a/64 scope link 
       valid_lft forever preferred_lft forever

连接成功测试:

[root@localhost 桌面]# ping baidu.com
PING baidu.com (220.181.57.217) 56(84) bytes of data.
64 bytes from 220.181.57.217: icmp_seq=1 ttl=51 time=61.0 ms
64 bytes from 220.181.57.217: icmp_seq=2 ttl=51 time=43.3 ms
^C64 bytes from 220.181.57.217: icmp_seq=3 ttl=51 time=42.5 ms

--- baidu.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 42.596/48.981/61.035/8.528 ms 

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