[Voyage-linux] how to configure wds if iwpriv always reports "no private ioctls."

Fri Feb 3 12:12:59 HKT 2012

Hi,

thank you for your help. I found an other solution which works.

This is the supposed topology:

(ISP wireless router - 192.168.100.254) <---wireless---> (ALIX setup
as bridge) <---wired---> (PC - 192.168.100.100)

I used proxy_arp:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
      address 0.0.0.0
      netmask 255.255.255.255
auto wlan0
iface wlan0 inet dhcp
      wpa-driver wext
      wpa-ssid <<Your_AP_SSID_Here>>
      wpa-psk <<cleartext_password>>
      wpa-key-mgmt WPA-PSK
      wpa-pairwise TKIP
      wpa-group CCMP TKIP
      wpa-proto RSN
      wireless-mode Managed
      post-up route del -net 192.168.100.0 netmask 255.255.255.0
      post-up route add -net 192.168.100.128 netmask 255.255.255.128 dev wlan0
      post-up route add -net 192.168.100.0 netmask 255.255.255.128 dev eth0

then add to your /etc/rc.local:

echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp
echo 1 > /proc/sys/net/ipv4/conf/wlan0/proxy_arp
echo 1 > /proc/sys/net/ipv4/ip_forward

On Fri, Feb 3, 2012 at 2:30 AM, Alfonso Fiore <alfonso.fiore at gmail.com> wrote:
> Hi,
>
> and thank you for your help!
>
> This is what I'm trying to achieve:
>
> (ISP wireless router - 192.168.1.1) <---wireless---> (ALIX setup as
> bridge) <---wired---> (PC - 192.168.1.x)
>
> I'd like my PC to have an address over the same network as all other
> devices. If I could have the ALIX as a repeated AS WELL I would prefer
> it since my XP laptop gets faster wireless from the ALIX (when
> configured as AP) compared to my ISP router.
> But let's consider this the next step.
>
>> Once you are connected all you need to do is bridge the wireless NIC with the wired ones.
>
> how can I achieve this?
>
> I tried to configure both eth0 and wlan0 to have IP 0.0.0.0 (so that
> br0 gets the address from my AP):
>
> /etc/network/interfaces
>
> auto eth0
> iface eth0 inet static
>        address 0.0.0.0
>        netmask 255.255.255.255
> auto wlan0
>
> iface wlan0 inet static
>        address 0.0.0.0
>        netmask 255.255.255.255
>        wpa-driver wext
>        wpa-ssid mySSID
>        wpa-psk myPASSWORD
>        wpa-key-mgmt WPA-PSK
>        wpa-pairwise TKIP
>        wpa-group CCMP TKIP
>        wpa-proto RSN
>        wireless-mode Managed
>
> I know the configuration is correct because if I setup wlan0 with dhcp
> I can connect to the AP and go on internet from the ALIX.
>
> then I run:
>
> # brctl addbr br0
> # brctl addif br0 wlan0
> can't add wlan0 to bridge br0: Operation not supported
> # iw dev wlan0 set 4addr on
> Failed to read classid file: Object not found (this error seems irrelevant)
> # brctl addif br0 wlan0
> device wlan0 entered promiscuous mode
> # brctl addif br0 eth0
> device eth0 entered promiscuous mode
> # ifconfig br0 up
> # dhclient br0
>
> but br0 never gets an IP from my wireless router.
>
> I also tried to run "ping 192.168.100.254" from the PC and using
> tcpdump on the ALIX I can see the ALIX probably never forwards the
> DHCP request from eth0 to wlan0.
>
> thank you,
> alfonso
>
> On Fri, Feb 3, 2012 at 12:51 AM, Gustin Johnson <gustin at meganerd.ca> wrote:
>> First don't try to use iwpriv.
>>
>> Second WDS stands for wireless distribution system.  You are essentially
>> creating a repeater.  If this is what you want then look at hostap as you
>> are also acting as an AP,
>>
>> If you do not want your wireless card to also be an AP (you did say it had
>> to be in managed mode), then just configure the wifi card as plain client.
>>
>> To do this you need to have the following lines in your interfaces file for
>> your wireless NIC:
>> wpa-ssid MySSID
>> wpa-psk someRanDoM_PSK
>>
>> Of course you should put in your own SSID and PSK.
>>
>> Once you are connected all you need to do is bridge the wireless NIC with
>> the wired ones.
>>
>> Hth,
>>
>> On Wed, Feb 1, 2012 at 6:34 PM, Alfonso Fiore <alfonso.fiore at gmail.com>
>> wrote:
>>>
>>> Hello,
>>>
>>> I'm trying to setup wds using voyage 0.8.0 and an ALIX 3d3 with a
>>> dcma81 (Atheros AR5414).
>>>
>>> I first want to setup the wds from command line but every time I try a
>>> iwpriv command I get "no private ioctls." error.
>>>
>>> I'm not sure if this really my problem, but I read here (
>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/99432 ) that some
>>> driver doesn't support iwpriv (despite the HW).
>>>
>>> But now if I want to setup a bridge between wlan0 and eth0 what should I
>>> do?
>>>
>>> /etc/network/interfaces suggests:
>>>
>>> #auto br0
>>> #iface br0 inet static
>>> #        address 192.168.1.2
>>> #        netmask 255.255.255.0
>>> #        network 192.168.1.0
>>> #        broadcast 192.168.1.255
>>> #        gateway 192.168.1.1
>>> #        bridge_ports eth0 wlan0 wlan0wds0
>>> #        pre-up iwconfig wlan0 mode Master essid voyage-wds channel 1
>>> #        pre-up iwpriv wlan0 wds_add AA:BB:CC:DD:EE:FF
>>>
>>> but it doesn't work due to iwpriv not working (and I need my wireless
>>> to be in Managed mode, but this is irrelevant to this problem).
>>>
>>> I tried to manually bring up wlan0 like this:
>>>
>>> auto wlan0
>>> iface wlan0 inet dhcp
>>>        wpa-driver wext
>>>        wpa-ssid
>>>        wpa-psk
>>>        wpa-key-mgmt WPA-PSK
>>>        wpa-pairwise TKIP
>>>        wpa-group TKIP
>>>        wpa-proto WPA
>>>        wireless-mode Managed
>>>
>>> and then manually creating a bridge but it doesn't work (and this is
>>> why wds exists as far I understand).
>>>
>>> Any help is appreciated.
>>>
>>> Thank you,
>>> alfonso
>>>
>>> _______________________________________________
>>> Voyage-linux mailing list
>>> Voyage-linux at list.voyage.hk
>>> http://list.voyage.hk/mailman/listinfo/voyage-linux
>>
>>