Couldn't connect to wireless networking

纵横天下 zhtx10 at gmail.com
Sun Jun 26 08:55:53 UTC 2011 

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?

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