Running bcm43xx-d80211 as access-point

Jean-Mickael Guerin jean-mickael.guerin at 6wind.com
Thu Jun 22 05:23:45 EDT 2006


Jouni Malinen wrote:
> Interesting.. Which version are you using now? I haven't seen Beacon
> frame transmission working with bcm43xx, so it would be interesting to
> hear if this was just because of the old firmware version (I think I've
> only tested with quite an old version).
> 

Well, I switched back to previous firmware and it still works.
There was something wrong with the configuration steps, I'm quite sure I 
missed to set essid with iwconfig.
The laptop discovers the network and can associate. However I didn't
check correctness of exchanges. Below some captures:

on wmaster interface:
07:12:09.227684 Authentication (Open System)-2:
07:12:09.229896 Authentication (Open System)-2:
07:12:09.232265 Authentication (Open System)-2:
07:12:09.235150 Assoc Response AID(1) :: Succesful
07:12:09.248309 Assoc Response AID(1) :: Succesful
07:12:09.249983 Assoc Response AID(1) :: Succesful
07:12:09.254586 Assoc Response AID(1) :: Succesful
07:12:09.256235 Assoc Response AID(1) :: Succesful
07:12:09.267450 Assoc Response AID(1) :: Succesful
07:12:09.929410 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
from 00:0e:35:AA:BB:CC, length: 300


At same time on wmgmt interface:
07:12:09.224039 Authentication[|802.11]
07:12:09.224085 Authentication[|802.11]
07:12:09.224108 Authentication[|802.11]
07:12:09.227587 [|802.11]
07:12:09.227684 Authentication[|802.11]
07:12:09.229844 [|802.11]
07:12:09.230754 Assoc Request ()
07:12:09.230801 Assoc Request ()
07:12:09.230824 Assoc Request ()
07:12:09.232185 [|802.11]
07:12:09.235071 [|802.11]
07:12:09.229896 Authentication[|802.11]
07:12:09.232265 Authentication[|802.11]
07:12:09.239853 Assoc Request ()
07:12:09.239931 Assoc Request ()
07:12:09.239957 Assoc Request ()
07:12:09.235150 Assoc Response[|802.11]
07:12:09.248209 [|802.11]
07:12:09.249904 [|802.11]
07:12:09.248309 Assoc Response[|802.11]
07:12:09.249983 Assoc Response[|802.11]
07:12:09.254506 [|802.11]
07:12:09.256158 [|802.11]
07:12:09.254586 Assoc Response[|802.11]
07:12:09.256235 Assoc Response[|802.11]
07:12:09.267351 [|802.11]
07:12:09.267450 Assoc Response[|802.11]
07:12:09.935225 Probe Request[|802.11]

For information kernel part is based on:
- net/d80211 from wireless-dev.git 2006/06/15
- Michael Buesch & Alexander Tsvyashchenko 's patch [PATCH, RFT]
bcm43xx: AccessPoint mode posted 2006/06/19
- a change in hostapd to make wlan interface up rather than
management interface (On my sytem, ifconfig wmgmt0 up raises operation
not permitted. Do people set wlan interface up before running hostapd?).
- a patch for bcm43xx driver, to reset mac_suspended counter when 
interfaces goes up. To get rid of many "wrong assertion" about this 
variable.

Patches are attached (hostapd.diff includes Michael's patch).

Regards,

Jean-Mickael
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