linux 安装 wpa_suppliant 进行无线上网

 
1.       run wpa_supplicant first:

wpa_supplicant -i wlan0 -D wext -c /tmp/wpa_supplicant.cfg –B

 

2.       run wpa_cli(cmd line tool) to connect to ssid:

a)         scan:   to scan the neighbor AP

b)         scan_result: show the scan result

c)         status:  check out the current connection information

d)         terminate:      terminate the wpa_supplicant;

e)         quit:

f)          add_network:  it will return a network id;

g)         set_network:  example, set_network 0 ssid “hztb”, set_network 0 key_mgmt NONE;

h)         disable_network:

i)           enable_network:

 

3. how to config wpa_supplicant.cfg

    you can issue "echo \"ctrl_interface=/var/run/wpa_supplicant\" > /tmp/wpa_supplicant.cfg" to create a wpa_supplicant.cfg

 

4.  get ip by dhclint: 

    you can issue "dhclint wlan0" to get ip from dhcp server.

 

5. auth-mode:

MODE wpa_cli parameter

---------------------------------------------------------------------------------------------

WPA-PSK-TKIP: key_mgmt=WPA-PSK

                               proto=WPA

                               pairwise=TKIP

                              group=TKIP

 WPA-PSK-AES: key_mgmt=WPA-PSK

                              proto=WPA

                              pairwise=CCMP

                              group=CCMP

--------------------------------------------------------------------------------------------

WPA2-PSK-TKIP: key_mgmt=WPA2-PSK

                                proto=WPA2

                                pairwise=TKIP

                               group=TKIP

WPA2-PSK-TKIP-AES: key_mgmt=WPA2-PSK

                                         proto=WPA

                                         pairwise=CCMP

                                         TKIP group=TKIP

 ---------------------------------------------------------------------------------------------

 

then you can access to internet by ssid.