dhclient and wpa_supplicant

Eric Schuele e.schuele at computer.org
Sun Jul 31 04:09:12 GMT 2005


Sam Leffler wrote:
> Eric Schuele wrote:
> 
>> Sam Leffler wrote:
>>
>>> Eric Schuele wrote:
>>>
>>
>> <big-snip>
>>
>>>> dhclient.conf contains
>>>> ===========================
>>>> interface "ath0" {
>>>>   #send option host-name "myhost";
>>>>   #send option domain-name "nxdomain.org";
>>>>   send dhcp-client-identifier "myhost";
>>>>
>>>>   media
>>>>   ### Home
>>>>   "ssid <home_ssid> mode 11b channel 11 wepmode on weptxkey 1 wepkey 
>>>> 0x<home_wepkey>",
>>>>   ### Office
>>>>   "ssid <office_ssid mode 11b channel 6 wepmode on weptxkey 1 wepkey 
>>>> 0x<office_wepkey>";
>>>>       request subnet-mask, broadcast-address, routers, 
>>>> domain-name-servers, domain-name;
>>>> }
>>>
>>>
>>>
>>>
>>> Do not use media statements to setup wireless parameters; this does 
>>> not work.  You need to run wpa_supplicant and let it identify the 
>>> network and setup the key parameters.
>>
>>
>>
>> How do I tell wpa_supplicant about the network media?  I had found an 
>> older post of yours regarding NOT doing it in dhclient.conf.... but 
>> I've found no other way to accomplish it.
> 
> 
> The above dhclient.conf lists media settings that are all handled by 
> wpa_supplicant so you don't specify any of them.  Specifically you set 
> ssid, band, channel, and wep parameters; all these are handled by 
> wpa_supplicant.

ok... I removed the lines from dhclient.conf.  I reboot, and run 
wpa_supplicant manually with -d.  The output is attached.  My AP shows 
up as "", while my neighbors ssids are not hidden ('linksys' and 'default').

> 
> The intent is that dhclient deal only with the dhcp protocol and stop 
> being involved in the discovery and selection of wireless networks (a 
> job wpa_supplicant is better equipped to handle).
> 
>>
>>>
>>>>
>>>> wpa_supplicant.conf
>>>> =============================
>>>> ctrl_interface=/var/run/wpa_supplicant
>>>> ctrl_interface_group=wheel
>>>>
>>>> # Home Network
>>>> network={
>>>>    ssid="<home_ssid>"
>>>>    scan_ssid=1
>>>>    key_mgmt=NONE
>>>>    wep_tx_keyidx=0
>>>>    wep_key0="<home_wepkey>"
>>>> }
>>>>
>>>> # Office Network
>>>> network={
>>>>    ssid="<office_ssid>"
>>>>    scan_ssid=1
>>>>    key_mgmt=NONE
>>>>    wep_tx_keyidx=0
>>>>    wep_key0="<office_wepkey>"
>>>> }
>>>>
>>>
>>> Not sure you need scan_ssid set, I'd leave it out.
>>>
>>> If you have problems try disabling auto-startup of ath0 and run 
>>> wpa_supplicant by hand with the -d flag to see what it's doing.  Once 
>>> that's going then enable startup in rc.conf.  If you continue to have 
>>> problems provide the output wpa_supplicant -d -i ath0 -c 
>>> /etc/wpa_supplicant.conf (or similar) when you have trouble.  There is
>>> also a pending issue with locating some ap's that are setup to hide 
>>> their ssid.  If one of the ap's is configured in this way contact me 
>>> directly--I've been trying to collect the info I need to identify 
>>> what's going on.
>>
>>
>>
>> Both my APs (home and office) hide their ssids.  One is a wrt54g 
>> (home), the other is linksys as well... though I forget the model at 
>> the moment (FWIW its a/b/g).  What can I do to provide the info you need?
> 
> 
> These should work; I've had reports of problems with certain Cisco ap's. 
>  Note however that configuring an ap to hide it's ssid adds no real 
> security.

I realize hidden ssids are of no real world use... but they keep *my* 
neighbors out (you'll notice their ssids in the wpa_supp output).

> 
>     Sam
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to 
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> 

Any idea why my machine will never associate with my AP using 
wpa_supplicant?  Anything else I can provide that may shed some light? 
I am using WEP... not WPA... could that part of the problem.  Since WPA 
was not previously supported I had been using WEP... and figured I'd 
move up to WPA one step at a time.

All help is appreciated.

-- 
Regards,
Eric
-------------- next part --------------
Script started on Sat Jul 30 15:38:44 2005
You have mail.
fangorn# wpa_supplicant -d -i ath0 -c /etc/wpa_supplicntcant.conf

Initializing interface 'ath0' conf '/etc/wpa_supplicant.conf' driver 'default'
Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf'
Reading configuration file '/etc/wpa_supplicant.conf'
ctrl_interface='/var/run/wpa_supplicant'
ctrl_interface_group=0 (from group name 'wheel')
Priority group 0
   id=0 ssid='wLAN_WEP_Kx6L04o2'
   id=1 ssid='laquinta-g'
Initializing interface (2) 'ath0'
Own MAC address: 00:0e:9b:53:31:9d
wpa_driver_bsd_set_wpa: enabled=1
wpa_driver_bsd_del_key: keyidx=0
wpa_driver_bsd_del_key: keyidx=1
wpa_driver_bsd_del_key: keyidx=2
wpa_driver_bsd_del_key: keyidx=3
wpa_driver_bsd_set_countermeasures: enabled=0
wpa_driver_bsd_set_drop_unencrypted: enabled=1
Setting scan request: 0 sec 100000 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (3 BSSes)
Scan results: 3
Selecting BSS from priority group 0
0: 00:13:10:94:f4:07 ssid='linksys' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
2: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (3 BSSes)
Scan results: 3
Selecting BSS from priority group 0
0: 00:13:10:94:f4:07 ssid='linksys' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
2: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (1 BSSes)
Scan results: 1
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (3 BSSes)
Scan results: 3
Selecting BSS from priority group 0
0: 00:13:10:94:f4:07 ssid='linksys' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
2: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:13:10:94:f4:07 ssid='linksys' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
Received 0 bytes of scan results (2 BSSes)
Scan results: 2
Selecting BSS from priority group 0
0: 00:11:95:07:be:ec ssid='default' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
1: 00:0f:66:00:ca:5c ssid='' wpa_ie_len=0 rsn_ie_len=0
   skip - no WPA/RSN IE
No suitable AP found.
Setting scan request: 5 sec 0 usec
Starting AP scan (broadcast SSID)
^CSignal 2 received - terminating
No keys have been configured - skip key clearing
wpa_driver_bsd_set_wpa: enabled=0
wpa_driver_bsd_set_drop_unencrypted: enabled=0
wpa_driver_bsd_set_countermeasures: enabled=0
No keys have been configured - skip key clearing
wpa_driver_bsd_set_wpa: enabled=0
fangorn# exit

exit

Script done on Sat Jul 30 15:41:27 2005


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