Re: Issue with Configuring madwifi/Atheros in AP mode on DWL-AG530

Vivek Ramamoorthy <[email protected]> Fri, 30 Sep 2011 00:00:13 -0700
Newsgroups gmane.linux.drivers.madwifi.user
Message-ID <CAEC20oAmX5hTPOg_D+6Ai-tofLvKiaOMk7TH3tDvC9qHfroOww@mail.gmail.com>
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Hi Pavel,

Firewall was off. So that doesnt seem to be the issue..
Do you think, I should try an earlier version of madwifi in combination with
an older kernel?

Thanks
Vivek


On Tue, Sep 27, 2011 at 3:47 PM, Vivek Ramamoorthy <[email protected]>wrote:

> Hi Pavel,
>
> thanks for the inputs let me try checking the firewall settings.
> The madwifi version I am using is svn r4165 (branch madwifi-0.9.4)
>
> Attaching the dmesg, which I had missed out in earlier email.
>
> Thanks
> Vivek
>
>
> On Tue, Sep 27, 2011 at 1:11 PM, Pavel Roskin <[email protected]> wrote:
>
>> On Tue, 27 Sep 2011 11:34:53 -0700
>> Vivek Ramamoorthy <[email protected]> wrote:
>>
>> > Hi All,
>> >
>> > I have been trying to use a DLINK DWL-AG530 PCI card along with
>> > Madwifi to configure the chip in AP mode. Although the client
>> > associates fine, I am unable to ping ath0 interface.
>> > I have statically assigned IP to client since I dont have a DHCP
>> > server running.
>> >
>> > So here are the steps I have followed till now:
>> >
>> > 1) Downloaded source from http://madwifi-project.org/ and installed
>> > the same on my linux machine. Here are details of my linux version:
>> >
>> > [root@localhost ~]# uname -a
>> > Linux localhost.localdomain 2.6.27.25-78.2.56.fc9.i686 #1 SMP Thu Jun
>> > 18 12:47:50 EDT 2009 i686 i686 i386 GNU/Linux
>>
>> You forgot the version of madwifi.  It it's a snapshot, please specify
>> whether it's the trunk of the 0.9.4 branch, and what is the date or the
>> revision of the snapshot.
>>
>> > 3) In /etc/modprobe.d/madwifi
>> >
>> > alias wlan0 ath_pci
>> > blacklist ath5k
>> > options ath_pci autocreate=ap
>> >
>> > 4) Since I read in forums that DWL-AG530 comes with a broken country
>> > code, I changed the regdomain to 0x0 (also tried with 0x16)
>> > 5) modprobe ath_pci countrycode=840
>> > 6) wlanconfig ath0 destroy
>> > 7) wlanconfig ath0 create wlandev wifi0 wlanmode ap
>>
>> You can use the "autocreate=ap" parameter to avoid the need to recreate
>> ath0.
>>
>> > 8) iwpriv ath0 authmode 1   (open mode)
>>
>> I don't think you need to tweak private parameters for basic
>> functionality.
>>
>> > 9) iwconfig ath0 essid "test_wlan"
>> > 10) ifconfig ath0 10.1.1.10 netmask 255.255.255.0
>> > 11) ifconfig ath0 up
>> >
>> > *An issue I see, is that everytime I try to set the channel using
>> > iwconfig ath0 channel 6 (or whatever) the kernel panics and the
>> > system goes to hang state, so I leave it at default*
>>
>> I guess if might be the issue that prevents the release of the
>> version 0.9.4.1:
>> https://madwifi-project.org/ticket/1903
>>
>> The workaround it to set the channel while the interface is down.
>>
>> > I have a windows 7 client, on which i configure a static IP of
>> > 10.1.1.12 and connect to wlan "test_wlan". The client associates, and
>> > also I was able to sniff the assoc rsp, and ack packets from the air
>> > which had a "Success" status.
>> >
>> > However, when I ping 10.1.1.10 (ath0), no response. I get a Dest
>> > Unreachable from 10.1.1.12. So I added arp entry for 10.1.1.10
>> > manually on my client. When I do that the ICMP request times out, and
>> > I do see the ICMP requests in the air.
>> >
>> > I have been trying to figure out if the driver is dropping these
>> > packets due to some configuration thats wrong? Do let me know if
>> > anyone has faced similar issues.
>>
>> I suggest that you check firewall settings on Fedora (iptables).  Try
>> turning it off.
>>
>> > i have tried using bridges between ath0 and eth0 interface, Even that
>> > hasnt worked.
>> >
>> > Attaching the outputs of ifconfig, iwconfig and dmesg (No errors i
>> > saw in dmesg) along.
>> >
>> > Also, if anyone has used any of the currently available atheros
>> > chipsets along with Madwifi successfully to set up an AP (Master
>> > mode), would be great if you could provide me the Chipsets model
>> > number, and Madwifi version.. I am fine with any Atheros based
>> > Chipset that is available in the market, as long as I can use it with
>> > madwifi to setup in AP mode. Just wondering if the DWL-AG530 may be
>> > having issues in AP mode, since it works just fine as a wireless
>> > client.
>>
>> As far as I know, the only chipsets that are supported by MadWifi but
>> don't work in AP mode are AR5210 and possibly AR5211.  Both are very
>> old and don't even support 802.11g.
>>
>> --
>> Regards,
>> Pavel Roskin
>>
>
>

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Hi Pavel,<div><br></div><div>Firewall was off. So that doesnt seem to be th=
e issue..</div><div>Do you think, I should try an earlier version of madwif=
i in combination with an older kernel?=A0</div><div><br></div><div>Thanks</=
div>
<div>Vivek</div><div><br></div><div><br><div class=3D"gmail_quote">On Tue, =
Sep 27, 2011 at 3:47 PM, Vivek Ramamoorthy <span dir=3D"ltr">&lt;<a href=3D=
"mailto:[email protected]">[email protected]</a>&gt;</span> wrote:<=
br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">Hi Pavel,<div><br></div><div>thanks for the=
 inputs let me try checking the firewall settings.</div><div>The madwifi ve=
rsion I am using is=A0svn r4165 (branch madwifi-0.9.4)</div>
<div><br></div><div>Attaching the dmesg, which I had missed out in earlier =
email.</div>
<div><br></div><div>Thanks</div><div>Vivek</div><div><div></div><div class=
=3D"h5"><div><br></div><div><br><div class=3D"gmail_quote">On Tue, Sep 27, =
2011 at 1:11 PM, Pavel Roskin <span dir=3D"ltr">&lt;<a href=3D"mailto:prosk=
[email protected]" target=3D"_blank">[email protected]</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div>On Tue, 27 Sep 2011 11:34:53 -0700<br>
Vivek Ramamoorthy &lt;<a href=3D"mailto:[email protected]" target=3D"_b=
lank">[email protected]</a>&gt; wrote:<br>
<br>
&gt; Hi All,<br>
&gt;<br>
&gt; I have been trying to use a DLINK DWL-AG530 PCI card along with<br>
&gt; Madwifi to configure the chip in AP mode. Although the client<br>
&gt; associates fine, I am unable to ping ath0 interface.<br>
&gt; I have statically assigned IP to client since I dont have a DHCP<br>
&gt; server running.<br>
&gt;<br>
&gt; So here are the steps I have followed till now:<br>
&gt;<br>
&gt; 1) Downloaded source from <a href=3D"http://madwifi-project.org/" targ=
et=3D"_blank">http://madwifi-project.org/</a> and installed<br>
&gt; the same on my linux machine. Here are details of my linux version:<br=
>
&gt;<br>
&gt; [root@localhost ~]# uname -a<br>
&gt; Linux localhost.localdomain 2.6.27.25-78.2.56.fc9.i686 #1 SMP Thu Jun<=
br>
&gt; 18 12:47:50 EDT 2009 i686 i686 i386 GNU/Linux<br>
<br>
</div>You forgot the version of madwifi. =A0It it&#39;s a snapshot, please =
specify<br>
whether it&#39;s the trunk of the 0.9.4 branch, and what is the date or the=
<br>
revision of the snapshot.<br>
<div><br>
&gt; 3) In /etc/modprobe.d/madwifi<br>
&gt;<br>
&gt; alias wlan0 ath_pci<br>
&gt; blacklist ath5k<br>
&gt; options ath_pci autocreate=3Dap<br>
&gt;<br>
&gt; 4) Since I read in forums that DWL-AG530 comes with a broken country<b=
r>
&gt; code, I changed the regdomain to 0x0 (also tried with 0x16)<br>
&gt; 5) modprobe ath_pci countrycode=3D840<br>
&gt; 6) wlanconfig ath0 destroy<br>
&gt; 7) wlanconfig ath0 create wlandev wifi0 wlanmode ap<br>
<br>
</div>You can use the &quot;autocreate=3Dap&quot; parameter to avoid the ne=
ed to recreate<br>
ath0.<br>
<div><br>
&gt; 8) iwpriv ath0 authmode 1 =A0 (open mode)<br>
<br>
</div>I don&#39;t think you need to tweak private parameters for basic<br>
functionality.<br>
<div><br>
&gt; 9) iwconfig ath0 essid &quot;test_wlan&quot;<br>
&gt; 10) ifconfig ath0 10.1.1.10 netmask 255.255.255.0<br>
&gt; 11) ifconfig ath0 up<br>
&gt;<br>
&gt; *An issue I see, is that everytime I try to set the channel using<br>
&gt; iwconfig ath0 channel 6 (or whatever) the kernel panics and the<br>
&gt; system goes to hang state, so I leave it at default*<br>
<br>
</div>I guess if might be the issue that prevents the release of the<br>
version <a href=3D"http://0.9.4.1" target=3D"_blank">0.9.4.1</a>:<br>
<a href=3D"https://madwifi-project.org/ticket/1903" target=3D"_blank">https=
://madwifi-project.org/ticket/1903</a><br>
<br>
The workaround it to set the channel while the interface is down.<br>
<div><br>
&gt; I have a windows 7 client, on which i configure a static IP of<br>
&gt; 10.1.1.12 and connect to wlan &quot;test_wlan&quot;. The client associ=
ates, and<br>
&gt; also I was able to sniff the assoc rsp, and ack packets from the air<b=
r>
&gt; which had a &quot;Success&quot; status.<br>
&gt;<br>
&gt; However, when I ping 10.1.1.10 (ath0), no response. I get a Dest<br>
&gt; Unreachable from 10.1.1.12. So I added arp entry for 10.1.1.10<br>
&gt; manually on my client. When I do that the ICMP request times out, and<=
br>
&gt; I do see the ICMP requests in the air.<br>
&gt;<br>
&gt; I have been trying to figure out if the driver is dropping these<br>
&gt; packets due to some configuration thats wrong? Do let me know if<br>
&gt; anyone has faced similar issues.<br>
<br>
</div>I suggest that you check firewall settings on Fedora (iptables). =A0T=
ry<br>
turning it off.<br>
<div><br>
&gt; i have tried using bridges between ath0 and eth0 interface, Even that<=
br>
&gt; hasnt worked.<br>
&gt;<br>
&gt; Attaching the outputs of ifconfig, iwconfig and dmesg (No errors i<br>
&gt; saw in dmesg) along.<br>
&gt;<br>
&gt; Also, if anyone has used any of the currently available atheros<br>
&gt; chipsets along with Madwifi successfully to set up an AP (Master<br>
&gt; mode), would be great if you could provide me the Chipsets model<br>
&gt; number, and Madwifi version.. I am fine with any Atheros based<br>
&gt; Chipset that is available in the market, as long as I can use it with<=
br>
&gt; madwifi to setup in AP mode. Just wondering if the DWL-AG530 may be<br=
>
&gt; having issues in AP mode, since it works just fine as a wireless<br>
&gt; client.<br>
<br>
</div>As far as I know, the only chipsets that are supported by MadWifi but=
<br>
don&#39;t work in AP mode are AR5210 and possibly AR5211. =A0Both are very<=
br>
old and don&#39;t even support 802.11g.<br>
<font color=3D"#888888"><br>
--<br>
Regards,<br>
Pavel Roskin<br>
</font></blockquote></div><br></div>
</div></div></blockquote></div><br></div>

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