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thanks chili555^^, but i do run the command as root, so i guess i actually get the latest ap info, and i also try "sudo iwlist wlan0 scanning", but get the same result:).

below is the detailed...

thanks for your reply, i am seeking for the information about my own wireless setup to sovle the 2 weird issue:
1. unable to get the nearby ap info which is in 13 frequency band.
2. when a nearby...

i got some new informations. but also got some new questions.

1.when the ap is in the 13 frequency band, i can't get the ap info via iwlist scanning. which is very weird.

2.Given that the i...

Hi, i have a router with wireless on,and i want to get the ap information via "iwlist wlan0 scanning",but seems the scan result does't contain the ap info i want. meanwhile, the cell phone can get...

Hi, i want to configure the wireless NIC via wireless tools such as "iwconfig", but if network-manager is running, i can't connect to any ap via typing "iwconfig wlan0 essid XXXXX", i don't want to...

Hi,now i got a new problem,if the access point doesn't provide dhcp services, which means i can't use the command "dhclient ath0" to get ip address now:(,i have to specify the IP address, netmask,the...

Hi, I have to do some modification in madwifi driver.

i wanna know the functions/interfaces whice i can call to:
1.scan the access point around.
2.get the scanning result.
3.connect to the...

hi techdude3177:
thank you for your kindly help, i remove the NetworkManger by using the command "apt-get remove network-manager*", and now i can connect to the ap.^___^
it's really very...

hi,sorry for late reply.
the output of "ifconfig ath0" is:

ath0 Link encap:Ethernet HWaddr d8:5d:4c:06:f9:9d
inet6 addr: fe80::da5d:4cff:fe06:f99d/64 Scope:Link
UP...

thanks techdude3177.:):):)

i did just as you said, the access point name i want to connect is "ljtplink2", so actually i type the command " iwconfig ath0 essid ljtplink2 ".

now the issue is...

More information, i 'm still unable to connect.
step1:ifconfig ath0 up
step2:iwconfig ath0 essid "wireless"
step3:dhclient ath0
(there is no encryption, so i didn't need to give key )
then i got...

thank techdude3177 for your reply.

i type "iwconfig" then i see the infomations below.

lo no wireless extensions.
eth0 no wireless extensions.
wifi0 no wireless extensions....

Hi, i use madwifi as the wireless NCI driver, and it works fine in UBUNTU, but i wanna know how to connect to a specific AP via wireless tools such as "iwconfig, iwlist" in CLI, so can someone...