Couldn't connect to wireless networking

Adrian Chadd adrian at freebsd.org
Sun Jun 26 09:09:37 UTC 2011 

You interrupted wpa_supplicant. Then you tried running dhclient on it
without wpa_supplicant running, which won't work.

The problem unfortunately is that it can't seem to see the access
point. It should show up in "ifconfig wlan0 scan". If it isn't, it
means something is broken.
Please find out which channel the access point is supposed to be on
(if you see one valid scan result, please paste it here!) and then we
can move on from there.




Adrian

2011/6/26 纵横天下 <zhtx10 at gmail.com>:
> 在 2011年6月26日 下午3:57，Matt <sendtomatt at gmail.com>写道：
>
>> On 06/25/11 21:21, Kevin Oberman wrote:
>> > You seem determined to not to provide information that might help. Output
>> > of:
>> > ifconfig wlan0
>> > netstat -rnf inet
>> > would be a start.
>> >
>> > R. Kevin Oberman, Network Engineer
>> > Retired
>> > kob6558 at gmail.com
>> > On Jun 25, 2011 5:00 PM, "纵横天下" <zhtx10 at gmail.com> wrote:
>> >> I only know that it's 11g mode.
>> >>
>> >> The main issue is I cannot ping any websites if wlan0 becomes
>> associated.
>> >> I really don't know what I do next... :-(
>> >> I think my configurations are correct.
>> >>
>> >> What's the channel of the AP?
>> >>>
>> >>> adrian
>> >>>
>> >>> 2011/6/25 纵横天下 <zhtx10 at gmail.com>:
>> >>>>> Too many possibilities to tell.
>> >>>>>
>> >>>>> Is your DNS server configured? It should be in /etc/resolv.conf.
>> >>>>>
>> >>>>> Is your default route set?
>> >>>>> netstat -rnf inet
>> >>>>>
>> >>>>> What is the output of
>> >>>>> ifconfig wlan0
>> >>>>>
>> >>>>> Most of these things should be set by DHCP, but may not be.
>> >>>>> If it shows as associated, try pinging your router.
>> >>>>>
>> >>>>> Still, without more information, it's all just guesses on my part.
>> >>>>>
>> >>>>> --
>> >>>>> R. Kevin Oberman, Network Engineer
>> >>>>> Retired
>> >>>>> kob at gmail.com
>> >>>> OK.
>> >>>> the output ifconfig wlan0:
>> >>>> wlan0: flags=8c43<UP,BROADCAST,RUNNING,OACTIVE,SIMPLEX,MULTICAST>
>> > metric
>> >>> 0
>> >>>> mut 1500
>> >>>> ether 00:26:37:64:1e:b9
>> >>>> inet 0.0.0 netmask 0xff000000 broadcast 255.255.255.255
>> >>>> media:IEEE 802.11 wireless ethernet autoselect (autoselect)
>> >>>> status: no carried.
>> >>>> ssid "" channel 6 (2437 MHz 11g)
>> >>>> regdomail 97 indoor ecm authmode WPA1+WPA2/802.11i privacy ON
>> >>>> deftxkey UNDEF txpower 20 bmiss 7 scanvalid 450 bgscan bgscanintvl 300
>> >>>> bgscanidle 250 roam:rssi 7 roam:rate 5 protmode CTS wme burst
>> >>>> roaming MANUAL
>> >>>>
>> >>>> ifconfig wlan0 list scan
>> >>>> <empty !! just now it could find ssid WEB...>
>> >>>>
>> >>>> netstat -rnf inet
>> >>>> Routing tables
>> >>>> Internet:
>> >>>> Destination Gateway Flags Refs Use Netif Expire
>> >>>> 0.0.0.0/8 link#4 U 0 0 wlan0
>> >>>> 127.0.0.1 link#3 UH 0 0 lo0
>> >>>>
>> >>>>
>> >>>>
>> >> _______________________________________________
>> >> freebsd-wireless at freebsd.org mailing list
>> >> http://lists.freebsd.org/mailman/listinfo/freebsd-wireless
>> >> To unsubscribe, send any mail to "
>> freebsd-wireless-unsubscribe at freebsd.org
>> > "
>> > _______________________________________________
>> > freebsd-wireless at freebsd.org mailing list
>> > http://lists.freebsd.org/mailman/listinfo/freebsd-wireless
>> > To unsubscribe, send any mail to "
>> freebsd-wireless-unsubscribe at freebsd.org"
>> >
>> Please note -Dbsd is generally unnecessary, although probably not the
>> problem.
>> Below is a bit of sh that can be put into a script or run line by line
>> that should record most connection setup and connection into a log in
>> your home directory called "wifilog.txt" which you could upload if it's
>> still not working. As an added bonus, it should leave your connection
>> setup afterward (it's a modified version of a connection script I tend
>> to use).
>>
>> run the following as root or under sudo:
>>
>> echo "Setup log:" > ~/wifilog.txt
>> route -n flush &>> ~/wifilog.txt
>>
> ifconfig wlan0 destroy &>> ~/wifilog.txt
>>
> ifconfig ath0 down &>> ~/wifilog.txt
>>
> ifconfig ath0 up &>> ~/wifilog.txt
>> ifconfig wlan0 create wlandev ath0 &>>~/wifilog.txt
>> ifconfig wlan0 up scan &>> ~/wifilog.txt
>> sleep 2
>> ifconfig ath0 scan &>> ~/wifilog.txt
>> wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B &>>~/wifilog.txt
>> sleep 5
>> dhclient wlan0 &>>~/wifilog.txt
>> echo "Connection info:" >> ~/wifilog.txt
>> netstat -rn &>>~/wifilog.txt
>> cat /etc/resolv.conf &>>~/wifilog.txt
>> ifconfig wlan0 &>>~/wifilog.txt
>> ping -t 3 4.4.4.4 &>>~/wifilog.txt
>>
>> # Hope it helps,
>> # Matt
>>
>
> I got many errors, but not save to wifilog.txt. (Copied here)
>
>
> laptop# ifconfig wlan0 destroy
> laptop# ifconfig wlan0 create wlandev ath0
> laptop# ifconfig wlan0
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>    ether 00:26:37:64:1e:b9
>    media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
>    status: no carrier
>    ssid WEB channel 6 (2437 MHz 11g)
>    regdomain 97 indoor ecm authmode WPA1+WPA2/802.11i privacy ON
>    deftxkey UNDEF txpower 20 bmiss 7 scanvalid 450 bgscan bgscanintvl 300
>    bgscanidle 250 roam:rssi 7 roam:rate 5 protmode CTS wme burst
>    roaming MANUAL
> laptop# route -n flush
> laptop# ifconfig wlan0 destroy
> laptop# ifconfig ath0 down
> laptop# ifconfig ath0 up
> laptop# ifconfig wlan0 create wlandev ath0
> laptop# ifconfig wlan0 up scan
> laptop# sleep 2
> laptop# wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B
> laptop# dhclient wlan0
> wlan0: no link .............. giving up
> laptop# wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> CTRL-EVENT-SCAN-RESULTS
> ^CCTRL-EVENT-TERMINATING - signal 2 received
> ioctl[SIOCS80211, op 26, arg 0x0]: Operation not supported
> Failed to disable WPA in the driver.
> ELOOP: remaining socket: sock=4 eloop_data=0x800e0b1c0 user_data=0x800e070f0
> handler=0x421840
> laptop# dhclient wlan0
> wlan0: no link ....^C
> laptop# netstat -rn
> Routing tables
>
> Internet:
> Destination        Gateway            Flags    Refs      Use  Netif Expire
> 127.0.0.1          link#3             UH          0       48    lo0
>
> Internet6:
> Destination                       Gateway                       Flags
> Netif Expire
> ::1                               ::1                           UH
> lo0
> fe80::%lo0/64                     link#3                        U
> lo0
> fe80::1%lo0                       link#3                        UHS
> lo0
> ff01:3::/32                       fe80::1%lo0                   U
> lo0
> ff02::%lo0/32                     fe80::1%lo0                   U
> lo0
> laptop# cat /etc/resolv.conf
> cat: /etc/resolv.conf: No such file or directory
> laptop# ifconfig wlan0
> wlan0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>    ether 00:26:37:64:1e:b9
>    media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
>    status: no carrier
>    ssid WEB channel 6 (2437 MHz 11g)
>    regdomain 97 indoor ecm authmode WPA1+WPA2/802.11i privacy OFF
>    txpower 20 bmiss 7 scanvalid 450 bgscan bgscanintvl 300 bgscanidle 250
>    roam:rssi 7 roam:rate 5 protmode CTS wme burst roaming MANUAL
> laptop# ping -t 3 192.168.1.1
> PING 192.168.1.1 (192.168.1.1): 56 data bytes
> ping: sendto: No route to host
> ping: sendto: No route to host
> ping: sendto: No route to host
>
> --- 192.168.1.1 ping statistics ---
> 3 packets transmitted, 0 packets received, 100.0% packet loss
> laptop#
>
>
> Maybe the troubles happen when connect the DHCP server?
> _______________________________________________
> freebsd-wireless at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-wireless
> To unsubscribe, send any mail to "freebsd-wireless-unsubscribe at freebsd.org"
>

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