commshare/enable_wlan0.md

## enable_wlan0.md

      
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              enable_wlan0.md
            
          
    生成一个密码

root@orangepiplus:~# wpa_passphrase TPLINK-2018 
# reading passphrase from stdin
mypasswd
network={
        ssid="TPLINK-2018"
        #psk="mypasswd"
        psk=8a278324210558dad1a1bb182113f0df8fcee75946d31b25c7b839d98bbd49f7
}
root@orangepiplus:~# 

新建立wpa_supplication.conf并保存

ifconfig看不到，ifconfig -a 可以看到

##ifconfig看到wlan0
更换了网卡芯片以后，重新装驱动，发现用iwconfig查看结果是wlan1，而非wlan0。
原因：在/etc/udev/rules.d/70-persistent-net.rules中记录了插入网卡的先后顺序，第一块插入的为wlan0，因此更换后iwconfig查看结果是wlan1而非wlan0。
解决方法：将/etc/udev/rules.d/70-persistent-net.rules文件中的wlan1和wlan0注释掉，重新启动，用iwconfig查看为wlan0
http://reactivated.net/writing_udev_rules.html
修改interface  （debian的路径是/etc/network/interfaces）

root@orangepiplus:~# ls /etc/network
if-down.d       if-pre-up.d  interfaces       run
if-post-down.d  if-up.d      interfaces.orig  wpa_supplication.conf
root@orangepiplus:~# vi /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo eth0
allow-hotplug eth0
iface lo inet loopback
iface eth0 inet dhcp

#"your-ssid-here" and "your-passwd-here" should been replase with yours and remove the annotation

auto wlan0
iface wlan0 inet dhcp
#pre-up ip link set wlan0 up
#pre-up iwconfig wlan0 essid NRZ2.4
#wpa-ssid NRZ2.4
#wpa-pk
wpa-conf /etc/network/wpa_supplication.conf
~

~
~
"/etc/network/interfaces" 18L, 400C written                   

重启网络（没插网线千兆）

root@orangepiplus:~# /etc/init.d/networking restart
Running /etc/init.d/networking restart is deprecated because it may not re-enable some interfaces ... (warning).
Reconfiguring network interfaces...Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/wlan0/00:e0:4c:f0:19:af
Sending on   LPF/wlan0/00:e0:4c:f0:19:af
Sending on   Socket/fallback
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eth0/de:52:95:4c:f5:90
Sending on   LPF/eth0/de:52:95:4c:f5:90
Sending on   Socket/fallback
DHCPRELEASE on eth0 to 192.168.1.1 port 67
send_packet: Network is unreachable
send_packet: please consult README file regarding broadcast address.
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

[  559.158939] gmac0: probed
[  559.162029] gmac0 gmac0: eth0: eth0: PHY ID 0000ffff at 0 IRQ poll (gmac0-0:00)
[  559.180351] gmac0 gmac0: eth0: Initialize hardware error
Listening on LPF/eth0/de:52:95:4c:f5:90
Sending on   LPF/eth0/de:52:95:4c:f5:90
Sending on   Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
send_packet: Network is down
receive_packet failed on eth0: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
send_packet: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
send_packet: Network is down
No DHCPOFFERS received.
Trying recorded lease 192.168.1.194
connect: Network is unreachable
Trying recorded lease 192.168.1.214
connect: Network is unreachable
Trying recorded lease 192.168.1.51
connect: Network is unreachable
No working leases in persistent database - sleeping.
[  570.120826] ADDRCONF(NETDEV_UP): wlan0: link is not ready
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/wlan0/00:e0:4c:f0:19:af
Sending on   LPF/wlan0/00:e0:4c:f0:19:af
Sending on   Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4
[  572.108316] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPOFFER from 10.0.0.1
DHCPACK from 10.0.0.1
bound to 10.0.0.15 -- renewal in 40793 seconds.
done.
root@orangepiplus:~#

Debian 7 纯命令行 wlan设置

2013-09-15 23:00:35|  分类： Linux |  标签：linux  命令行  wifi   |举报|字号 订阅
下载LOFTER我的照片书  |
1、Ethernet设置
因为在配置过程中，可能需要下载软件什么的，所有先连上有线网‘
很简单
vi /etc/network/interfaces
########################
auto eth0
iface eth0 inet dhcp
########################
/etc/init.d/networking restart
这里用的是dhcp自动分配ip地址
2、配置wlan
装驱动，这个不说了，根据实际情况
iwconfig wlan0 txpower on
ifconfig wlan0 up
iwlist scanning
找到essid
apt-get install wpasupplicant
wpa_passphrase|tee /etc/wpa_supplicant.conf
这里会输入essid 和 password
生成的内容通过tee写入.conf文件
vi /etc/wpa_supplicant.conf
########################
network={
ssid="xxx"
key_mgmt=WPA-PSK
psk="xxx"
proto=RSN
pairwise=CCMP TKIP
group=CCMP TKIP
}
########################
wpa_supplicant -iwlan0 -Dwext -c/etc/wpa_supplicant.conf
vi /etc/network/interfaces
########################
auto wlan0
iface wlan0 inet dhcp
wpa-ssid " xxxx "
wpa-psk " xx "
########################
ifconfig wlan0 up
/etc/init.d/networking restart
root@linaro-alip:/# vim /etc/network/interfaces
打开这个文件，把其中倒数第2行的 ssid 替换成你要用的无线网络名称，password 替换成该无线网络的密码
auto wlan0
iface wlan0 inet dhcp
pre-up ip link set wlan0 up
pre-up iwconfig wlan0 essid ssid
wpa-ssid ssid
wpa-psk password
举个例子，我的无线网络名称叫 Caesar-AP，密码是 test0000，那我的配置文件应该写成：
iface wlan0 inet dhcp
pre-up ip link set wlan0 up
pre-up iwconfig wlan0 essid ssid
wpa-ssid Caesar-AP
wpa-psk test0000
3、启用无线网线，执行系列命令，无线网卡会按照我们配置文件里面的信息自动连接该无线网络，并且每次重启电脑后仍然可以自动连接。
root@linaro-alip:/# ifup wlan0
改成这样，去掉wpa那个conf，然后reboot

auto wlan0  
allow-hotplug wlan0  
iface wlan0 inet dhcp  
#wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf  
# Disable power saving on compatible chipsets (prevents SSH/connection dropouts  
over WiFi)  
#wireless-mode Managed  
#wireless-power on  
wpa-ssid "TP-LINK_whg2"  
wpa-psk f0a597f0e82976c8ba3b6e607d6150f9895410f52bbd3b645e995a7ed32ea9aa  


重启后还不行，dhclient wlan0 这样才有了IP 地址