版本[root@ ~]# uname -aLinux tp 3.3.4-5.fc17.x86_64 #1 SMP Mon May 7 17:29:34 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux[root@ ~]#
列出所有已连接的网卡[root@ ~]# lspci -v | grep Net00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)[root@ ~]#
找出无线网卡的设备ID（device id）[root@ ~]# lspci -n | grep 03:00.003:00.0 0280: 10ec:8176 (rev 01)[root@ ~]#
找出无线网卡的驱动[root@ ~]# lspci -vd 10ec:817603:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01) Subsystem: Realtek Semiconductor Co., Ltd. Device 8195 Flags: bus master, fast devsel, latency 0, IRQ 17 I/O ports at 5000 [size=256] Memory at f2500000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00 Kernel driver in use: rtl8192ce
[root@ ~]#
查看无线网卡内核驱动是否已经加载[root@ ~]# lsmod | grep rtl8192certl8192ce 79523 0 rtlwifi 104879 1 rtl8192certl8192c_common 72193 1 rtl8192cemac80211 492420 3 rtl8192c_common,rtlwifi,rtl8192ce[root@ ~]#
查看无线网卡在系统中显示的名称[root@ ~]# dmesg | grep rtl8192ce[root@ ~]# cat /var/log/messages | grep rtl8192ceNov 25 21:48:49 tp NetworkManager[664]: <info> (wlan0): new 802.11 WiFi device (driver: ‘rtl8192ce’ ifindex: 3)[root@ ~]#
查看并启动无线网卡[root@ ~]# ip link show wlan03: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DORMANT qlen 1000 link/ether 60:d8:19:cc:74:84 brd ff:ff:ff:ff:ff:ff[root@ ~]# ip link set wlan0 up[root@ ~]# ip link show wlan03: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT qlen 1000 link/ether 60:d8:19:cc:74:84 brd ff:ff:ff:ff:ff:ff[root@ ~]#
列出附近所有无线的SSID[root@ ~]# iw dev wlan0 scan | grep -i ssid SSID: n13u SSID: Tenda_3F97F8 SSID: 106F3F380F0F SSID: FAST_Diablo[root@ ~]#
为需要连接的无线路由/SSID生成密码wpa加密密码，并写入配置文件[root@ ~]# cat /etc/wpa_supplicant/wpa_supplicant.confctrl_interface=/var/run/wpa_supplicantctrl_interface_group=wheel
[root@ ~]# wpa_passphrase n13u ‘!#12345678901’ >> /etc/wpa_supplicant/wpa_supplicant.conf[root@ ~]# cat /etc/wpa_supplicant/wpa_supplicant.confctrl_interface=/var/run/wpa_supplicantctrl_interface_group=wheel
network={ ssid=”n13u” #psk=”!#12345678901″ psk=b8322c53a992106fdf862b3b31dc8235ab4d89795efa233b7c3f946711fdfcd9}[root@ ~]#
以调试模式验证密码[root@ ~]# wpa_supplicant -h | tail -n 1 wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf[root@ ~]# wpa_supplicant -Dwext -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -dwpa_supplicant v1.0-rc3random: Trying to read entropy from /dev/randomInitializing interface ‘wlan0’ conf ‘/etc/wpa_supplicant/wpa_supplicant.conf’ driver ‘wext’ ctrl_interface ‘N/A’ bridge ‘N/A’…wpa_driver_wext_set_key: alg=3 key_idx=1 set_tx=0 seq_len=6 key_len=16wlan0: WPA: Key negotiation completed with bc:ae:c5:7e:ba:fc [PTK=CCMP GTK=CCMP]wlan0: Cancelling authentication timeoutwlan0: State: GROUP_HANDSHAKE -> COMPLETEDwlan0: CTRL-EVENT-CONNECTED – Connection to bc:ae:c5:7e:ba:fc completed (auth) [id=0 id_str=]wpa_driver_wext_set_operstate: operstate 0->1 (UP)netlink: Operstate: linkmode=-1, operstate=6EAPOL: External notification – portValid=1EAPOL: External notification – EAP success=1EAPOL: SUPP_PAE entering state AUTHENTICATINGEAPOL: SUPP_BE entering state SUCCESSEAP: EAP entering state DISABLEDEAPOL: SUPP_PAE entering state AUTHENTICATEDEAPOL: Supplicant port status: AuthorizedEAPOL: SUPP_BE entering state IDLEEAPOL authentication completed successfullyRTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])RTM_NEWLINK, IFLA_IFNAME: Interface ‘wlan0’ addedWEXT: if_removed already cleared – ignore eventEAPOL: startWhen –> 0EAPOL: disable timer tick
看到下面这句说明密码验证成功了wlan0: WPA: Key negotiation completed with bc:ae:c5:7e:ba:fc [PTK=CCMP GTK=CCMP]
调试模式验证成功后，，用接下来的命令为验证开启一个后台进程[root@ ~]# wpa_supplicant -Dwext -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B[root@ ~]#
申请一个dhcp IP地址[root@ ~]# dhclient wlan0 [root@ ~]#
坐在外婆的沙滩，看最白的帆影。
