dhclient and wpa_supplicant

[Eric Schuele]

Sam Leffler wrote:
> Sam Leffler wrote:
> 
>> Brooks fixed a bunch of bugs in dhclient and I just committed an 
>> important fix to wpa_supplicant to work right when wireless cards are 
>> ejected (previously it would loop).
>>
>> I also tested that dhclient does the right thing for roaming between 
>> ap's--switching causes dhclient to immediately collect a new lease.
>>
>> I just ran tests with wpa_supplicant and found that it does appear to 
>> handle open ap's properly.
>>
>> Everything except the wpa_supplicant changes have been MFC'd to 
>> RELENG_6 for the 6.0RC2 build that's going to happen soon (I'm hoping 
>> to get re to approve the wpa_supplicant changes).
> 
> 
> FWIW I just MFC'd the wpa_supplicant fix.
> 
>>
>> So the question is what are the outstanding issues with dhclient and 
>> wpa_supplicant?  I'm mostly concerned with wireless devices but feel 
>> free to talk about wired interfaces too.  If something doesn't work 
>> right please try to give steps to reproduce the problem.  Otherwise 
>> please provide detailed info include ifconfig output.  Remember that 
>> dhclient logs info to /var/log/messages and you should also see link 
>> state change msgs there too.
> 
> 
> s/6.0RC2/6.0BETA2/.
> 
>     Sam
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Hello,

I am very interested in getting wpa_supplicant & dhclient to work. 
Presently it does not work for me the way I would hope it would.

I would think that if it were setup properly on my machine I could turn 
the machine on at home, and have it associate with my AP and then 
acquire a lease.  Then I could shut it down... go to the office... turn 
it on and then have it associate with the AP there and acquire a lease.

However it does not seem to do this.  It seems to only want to associate 
  with the last AP it ever associated with.  I then have to down the 
interface and manually ifconfig it.

I am fairly sure I do not have things setup properly, since others have 
had much better results.  Can you please point me to the most current 
docs or a "How To" to push me in the right direction.

I have RELENG_6 as of last night.  I have appended some conf files to 
the bottom for your review.

Thanks,

rc.conf contains
===========================
network_interfaces="lo0 bfe0 ath0"
ifconfig_ath0="WPA DHCP"
ifconfig_bfe0="DHCP"

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;
}

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>"
}

-- 
Regards,
Eric