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#1 2007-10-26 10:42:09

xavas
Member
Registered: 2007-10-25
Posts: 4

wlan works only after iwlist scan

Wlan does not work unless if scan with iwlist wlan0 scan as root after that it works fine and i have no problems.
I cant figure out whats the Problem ? what ist done if I only scan?
It also works after a :
iwconfig wlan0 essid WLAN

My Notebook is an new T61 Thinkpad.
Edit:I use the iwl4965 driver.

 iwconfig wlan0
wlan0     IEEE 802.11g  ESSID:"WLAN"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated   
          Retry min limit:7   RTS thr:off   Fragment thr=2346 B   
          Encryption key:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.2.0     *               255.255.255.0   U     0      0        0 wlan0
default         192.168.2.1     0.0.0.0         UG    0      0        0 wlan0
 ifconfig 
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:87 (87.0 b)  TX bytes:87 (87.0 b)

wlan0     Link encap:Ethernet  HWaddr 00:13:E8:AB:5F:9B  
          inet addr:192.168.2.23  Bcast:192.168.2.255  Mask:255.255.255.0
          inet6 addr: fe80::213:e8ff:feab:5f9b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:915 errors:0 dropped:0 overruns:0 frame:0
          TX packets:984 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:881070 (860.4 Kb)  TX bytes:218466 (213.3 Kb)

wmaster0  Link encap:UNSPEC  HWaddr 00-13-E8-AB-5F-9B-00-00-00-00-00-00-00-00-00-00  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

rc.conf

lo="lo 127.0.0.1"
eth0="eth0 192.168.2.67 netmask 255.255.255.0 broadcast 192.168.2.255"
wlan0="dhcp"
INTERFACES=(lo  !eth0 !wlan0)

gateway="default gw 192.168.2.1"
ROUTES=(!gateway)

NET_PROFILES=(home)

/etc/nework-profiles/home

DESCRIPTION="Default Network Profile"

INTERFACE=wlan0
HOSTNAME="splinter"

IFOPTS="192.168.2.23 netmask 255.255.255.0 broadcast 192.168.2.255"
GATEWAY=192.168.2.1

DOMAIN=localdomain
DNS1=192.168.2.1
DNS2=

ESSID="WLAN"

IWOPTS="essid $ESSID"

WIFI_INTERFACE=wlan0

iwlist scan as User after this it does not work

$ iwlist wlan0 scan
wlan0     No scan results

iwlust scan as root and from now on it works magically

wlan0     Scan completed :
          Cell 01 - Address: 00:16:38:6D:DD:B5
                    ESSID:"WLAN"
                    Mode:Master
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=96/100  Signal level=-31 dBm  Noise level=-127 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
                    Extra:tsf=000000646eef4669

It also works after a :

iwconfig wlan0 essid WLAN

in iwconfig the Acces Point changes from not accociated to die Accespoints Mac-Address everyelse has the same output

 iwconfig wlan0
wlan0     IEEE 802.11g  ESSID:"WLAN"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:16:38:6D:DD:B5   
          Bit Rate=54 Mb/s   
          Retry min limit:7   RTS thr:off   Fragment thr=2346 B   
          Encryption key:off
          Link Quality=97/100  Signal level=-28 dBm  Noise level=-95 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beaco

/var/log/everything.log

Oct 26 18:30:33 splinter wlan0: Initial auth_alg=0
Oct 26 18:30:33 splinter wlan0: authenticate with AP 00:16:38:6d:dd:b5
Oct 26 18:30:33 splinter wlan0: RX authentication from 00:16:38:6d:dd:b5 (alg=0 transaction=2 status=0)
Oct 26 18:30:33 splinter wlan0: authenticated
Oct 26 18:30:33 splinter wlan0: associate with AP 00:16:38:6d:dd:b5
Oct 26 18:30:33 splinter wlan0: RX AssocResp from 00:16:38:6d:dd:b5 (capab=0x401 status=0 aid=1)
Oct 26 18:30:33 splinter wlan0: associated
Oct 26 18:30:33 splinter ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Oct 26 18:30:43 splinter wlan0: no IPv6 routers present
Oct 26 18:31:01 gconfd (jens-8267): (Version 2.20.1) wir

I would be happy if anyone can help me.

Thanks

Last edited by xavas (2007-10-26 14:12:02)

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#2 2007-10-26 13:02:44

mrunion
Member
From: Jonesborough, TN
Registered: 2007-01-26
Posts: 1,938
Website

Re: wlan works only after iwlist scan

Sounds like a similar problem I was having.  Unfortunately all my network help requests through this forum have generally met with little or no response.

The one response I did get that seemed to be on the right track was to try the "new" network scripts that were being worked on.  I think they "internally" scan and save you that step.

I use the IWL4965 modules/drivers.  Is that what you use?

Last edited by mrunion (2007-10-26 13:03:07)

Matt

"It is very difficult to educate the educated."

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#3 2007-10-26 14:03:17

xavas
Member
Registered: 2007-10-25
Posts: 4

Re: wlan works only after iwlist scan

I use the IWL4965 modules/drivers.  Is that what you use?

Yes i use them too

try the "new" network scripts that were being worked on.

You mean the Networkmanager?


I think that it isn't  a Driver Problem because iwconfig wlan0 essid WLAN works after start.
Isnt the network script in /etc/rc.d using iwconfig?

Last edited by xavas (2007-10-26 14:33:09)

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#4 2007-10-26 17:14:39

daeron
Member
Registered: 2007-03-29
Posts: 13

Re: wlan works only after iwlist scan

just an Idea...
in your rc.conf, I see : INTERFACES=(lo  !eth0 !wlan0)

Why is wlan0 desactivated ("!wlan0" instead of "wlan0") ?

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#5 2007-10-26 18:55:45

xavas
Member
Registered: 2007-10-25
Posts: 4

Re: wlan works only after iwlist scan

daeron wrote:

just an Idea...
in your rc.conf, I see : INTERFACES=(lo  !eth0 !wlan0)

Why is wlan0 desactivated ("!wlan0" instead of "wlan0") ?

Because I use the network profiles, than i have to deactivate it, isnt that right?

Btw.: If i dont use the Network profile and instead use ne interfaces as normal it is the same problem

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#6 2007-10-27 00:41:33

mrunion
Member
From: Jonesborough, TN
Registered: 2007-01-26
Posts: 1,938
Website

Re: wlan works only after iwlist scan

Yup, wlan0 should be deactivated in the INTERFACES to use network profiles.  I have mine the same way.

Matt

"It is very difficult to educate the educated."

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