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WLAN Access Point with Intel 4965 network controller

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Ramon Hofer

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Jan 4, 2012, 7:40:01 PM1/4/12
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Hi all

I'm using Squeeze with 2.6.32-5-686 and I'm trying to configure my
Thinkpad X61s to act as WLAN Access Point. It has an Intel 4965 chipset:

# lspci
03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN
[Kedron] Network Connection (rev 61)

I tried to follow this guide:
http://agentoss.wordpress.com/2011/10/31/creating-a-wireless-access-point-
with-debian-linux/

I installed the packages that are described in the guide but replaced
with the appropriate firmware package:
# apt-get install firmware-iwlwifi wireless-tools hostapd bridge-utils

In my network there's a dhcp server on a different machine.
My /etc/network/interfaces looks like this: http://pastebin.com/sgzZawKu
And my /etc/hostapd/hostapd.conf like this: http://pastebin.com/Gw7LGXRi

Maybe the controller can't be used in master mode? Here's the output of
# iw phy phy0 info
http://pastebin.com/LCbYFghh

It says on lines 20ff:
Supported interface modes:
* IBSS
* managed
* monitor

As far as I understand this is a problem as there should also be master
listed?
Can you give me a hint on how to get this working?


Thanks in advance
Ramon


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Celejar

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Jan 5, 2012, 8:40:03 AM1/5/12
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On Thu, 5 Jan 2012 00:32:02 +0000 (UTC)
Ramon Hofer <ramon...@bluewin.ch> wrote:

> Hi all
>
> I'm using Squeeze with 2.6.32-5-686 and I'm trying to configure my
> Thinkpad X61s to act as WLAN Access Point. It has an Intel 4965 chipset:
>
> # lspci
> 03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN
> [Kedron] Network Connection (rev 61)

...

> Maybe the controller can't be used in master mode? Here's the output of
> # iw phy phy0 info
> http://pastebin.com/LCbYFghh
>
> It says on lines 20ff:
> Supported interface modes:
> * IBSS
> * managed
> * monitor
>
> As far as I understand this is a problem as there should also be master
> listed?

According to Wikipedia, the iwlwifi drivers indeed do not support master mode:

http://en.wikipedia.org/wiki/Comparison_of_open-source_wireless_drivers#Driver_capabilities

:( My T61 also has that card ...

Celejar <cel...@gmail.com>


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Ramon Hofer

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Jan 5, 2012, 12:10:02 PM1/5/12
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That's too bad :-(

But I was able to use my old Thinkpad T43 as a AP :-)


Regards
Ramon


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Massimo

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Nov 14, 2012, 1:00:02 PM11/14/12
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Ramon Hofer <ramonhofer <at> bluewin.ch> writes:

>
> On Thu, 05 Jan 2012 08:38:05 -0500, Celejar wrote:
>
> > On Thu, 5 Jan 2012 00:32:02 +0000 (UTC) Ramon Hofer
> > <ramonhofer <at> bluewin.ch> wrote:
> >
> >> I'm using Squeeze with 2.6.32-5-686 and I'm trying to configure my
> >> Thinkpad X61s to act as WLAN Access Point. It has an Intel 4965
> >> chipset:
> >>
> >> # lspci
> >> 03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or
> >> AGN [Kedron] Network Connection (rev 61)
> >
> > ...
> >
> >> Maybe the controller can't be used in master mode? Here's the output of
> >> # iw phy phy0 info
> >> http://pastebin.com/LCbYFghh
> >>
> >> It says on lines 20ff:
> >> Supported interface modes:
> >> * IBSS
> >> * managed
> >> * monitor
> >>
> >> As far as I understand this is a problem as there should also be master
> >> listed?
> >
> > According to Wikipedia, the iwlwifi drivers indeed do not support master
> > mode:
> >
> > http://en.wikipedia.org/wiki/Comparison_of_open-Now the wiki tell that
iwlwifi support Master Mode:

http://en.wikipedia.org/wiki/Comparison_of_open-source_wireless_drivers

but I try and it seems to not work
------------------------
iw phy phy0 info | less
....
Supported interface modes:
* IBSS
* managed
* monitor
software interface modes (can always be added):
* monitor
.....


------------------------

even if the output of iw command show something about
AP and AP/VLAN for TX and RX frames:

Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 ....
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0....
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 ....
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0....
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x....
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x...
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60..
Supported RX frame types:
* IBSS: 0xb0 0xc0 0xd0
* managed: 0x40 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0



using the last firmware available for iwlwifi:

# modinfo iwl4965
filename:
/lib/modules/3.6-6.slh.3-aptosid-amd64/kernel/drivers/net/wirel
ess/iwlegacy/iwl4965.ko
firmware: iwlwifi-4965-2.ucode
alias: iwl4965
license: GPL
author: Copyright(c) 2003-2011 Intel Corporation <i...@linux.intel.com>
version: in-tree:
description: Intel(R) Wireless WiFi 4965 driver for Linux
srcversion: 5ACB01E1C39795670D74138
alias: pci:v00008086d00004230sv*sd*bc*sc*i*
alias: pci:v00008086d00004229sv*sd*bc*sc*i*
depends: iwlegacy,cfg80211,mac80211
intree: Y
vermagic: 3.6-6.slh.3-aptosid-amd64 SMP preempt mod_unload modversions
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: queues_num:number of hw queues. (int)
parm: 11n_disable:disable 11n functionality (int)
parm: amsdu_size_8K:enable 8K amsdu size (int)
parm: fw_restart:restart firmware in case of error (int)


there is someone who know why? and how to activate the AP or AP/VLAN mode?

regards

Massimo





> source_wireless_drivers#Driver_capabilities
> >
> > :( My T61 also has that card ...
>
> That's too bad
>
> But I was able to use my old Thinkpad T43 as a AP
>
> Regards
> Ramon
>





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