I use a static IP. Any sort of router or AP in my house or at work gets a static IP (I have not tried to use dhcp). You might want to issue an "ip link set wlan0 up" before making the dhcp request. <div><br></div>
<div>I use one of my Alixs to provide connectivity to a distant room. One wifi NIC is used as a client station to the wifi network, the other acts as an AP (using two wifi cards allows me to avoid the performance penalty of WDS). I also bridge in the wired interfaces for non wireless devices. Works well enough (wifi in general sucks but sometimes that is all you have).<br>
<br><div class="gmail_quote">On Sat, Feb 4, 2012 at 11:01 AM, Alfonso Fiore <span dir="ltr"><<a href="mailto:alfonso.fiore@gmail.com">alfonso.fiore@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Gustin,<br>
<br>
thank you.<br>
<br>
In my example I do NOT have a bridge interface. I don't use brctl at<br>
all, so I think it's ok for wlan0 to have the IP address (since it<br>
works).<br>
<br>
For the sake of learning, I tried your solution but I didn't manage to<br>
make it work. The bridge I create with brctl never gets an IP from<br>
DHCP. If you have time to help me further, I can try again and learn<br>
how to do it.<br>
<br>
In my first reply to your post (On Fri, Feb 3, 2012 at 2:30 AM) I<br>
explained the problem I faced in trying to implement your solution.<br>
<br>
Maybe the bridge only works with a static IP?<br>
<br>
cheers,<br>
alfonso<br>
<div class="HOEnZb"><div class="h5"><br>
On Fri, Feb 3, 2012 at 9:10 AM, Gustin Johnson <<a href="mailto:gustin@meganerd.ca">gustin@meganerd.ca</a>> wrote:<br>
> Just an fyi, you don't assign an IP to the wireless interface, you assign an<br>
> IP to the bridge interface.<br>
><br>
><br>
> On Feb 2, 2012 9:13 PM, "Alfonso Fiore" <<a href="mailto:alfonso.fiore@gmail.com">alfonso.fiore@gmail.com</a>> wrote:<br>
>><br>
>> Hi,<br>
>><br>
>> thank you for your help. I found an other solution which works.<br>
>><br>
>> This is the supposed topology:<br>
>><br>
>> (ISP wireless router - 192.168.100.254) <---wireless---> (ALIX setup<br>
>> as bridge) <---wired---> (PC - 192.168.100.100)<br>
>><br>
>> I used proxy_arp:<br>
>><br>
>> auto lo<br>
>> iface lo inet loopback<br>
>> auto eth0<br>
>> iface eth0 inet static<br>
>> address 0.0.0.0<br>
>> netmask 255.255.255.255<br>
>> auto wlan0<br>
>> iface wlan0 inet dhcp<br>
>> wpa-driver wext<br>
>> wpa-ssid <<Your_AP_SSID_Here>><br>
>> wpa-psk <<cleartext_password>><br>
>> wpa-key-mgmt WPA-PSK<br>
>> wpa-pairwise TKIP<br>
>> wpa-group CCMP TKIP<br>
>> wpa-proto RSN<br>
>> wireless-mode Managed<br>
>> post-up route del -net 192.168.100.0 netmask 255.255.255.0<br>
>> post-up route add -net 192.168.100.128 netmask 255.255.255.128 dev<br>
>> wlan0<br>
>> post-up route add -net 192.168.100.0 netmask 255.255.255.128 dev eth0<br>
>><br>
>> then add to your /etc/rc.local:<br>
>><br>
>> echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp<br>
>> echo 1 > /proc/sys/net/ipv4/conf/wlan0/proxy_arp<br>
>> echo 1 > /proc/sys/net/ipv4/ip_forward<br>
>><br>
>> On Fri, Feb 3, 2012 at 2:30 AM, Alfonso Fiore <<a href="mailto:alfonso.fiore@gmail.com">alfonso.fiore@gmail.com</a>><br>
>> wrote:<br>
>> > Hi,<br>
>> ><br>
>> > and thank you for your help!<br>
>> ><br>
>> > This is what I'm trying to achieve:<br>
>> ><br>
>> > (ISP wireless router - 192.168.1.1) <---wireless---> (ALIX setup as<br>
>> > bridge) <---wired---> (PC - 192.168.1.x)<br>
>> ><br>
>> > I'd like my PC to have an address over the same network as all other<br>
>> > devices. If I could have the ALIX as a repeated AS WELL I would prefer<br>
>> > it since my XP laptop gets faster wireless from the ALIX (when<br>
>> > configured as AP) compared to my ISP router.<br>
>> > But let's consider this the next step.<br>
>> ><br>
>> >> Once you are connected all you need to do is bridge the wireless NIC<br>
>> >> with the wired ones.<br>
>> ><br>
>> > how can I achieve this?<br>
>> ><br>
>> > I tried to configure both eth0 and wlan0 to have IP 0.0.0.0 (so that<br>
>> > br0 gets the address from my AP):<br>
>> ><br>
>> > /etc/network/interfaces<br>
>> ><br>
>> > auto eth0<br>
>> > iface eth0 inet static<br>
>> > address 0.0.0.0<br>
>> > netmask 255.255.255.255<br>
>> > auto wlan0<br>
>> ><br>
>> > iface wlan0 inet static<br>
>> > address 0.0.0.0<br>
>> > netmask 255.255.255.255<br>
>> > wpa-driver wext<br>
>> > wpa-ssid mySSID<br>
>> > wpa-psk myPASSWORD<br>
>> > wpa-key-mgmt WPA-PSK<br>
>> > wpa-pairwise TKIP<br>
>> > wpa-group CCMP TKIP<br>
>> > wpa-proto RSN<br>
>> > wireless-mode Managed<br>
>> ><br>
>> > I know the configuration is correct because if I setup wlan0 with dhcp<br>
>> > I can connect to the AP and go on internet from the ALIX.<br>
>> ><br>
>> > then I run:<br>
>> ><br>
>> > # brctl addbr br0<br>
>> > # brctl addif br0 wlan0<br>
>> > can't add wlan0 to bridge br0: Operation not supported<br>
>> > # iw dev wlan0 set 4addr on<br>
>> > Failed to read classid file: Object not found (this error seems<br>
>> > irrelevant)<br>
>> > # brctl addif br0 wlan0<br>
>> > device wlan0 entered promiscuous mode<br>
>> > # brctl addif br0 eth0<br>
>> > device eth0 entered promiscuous mode<br>
>> > # ifconfig br0 up<br>
>> > # dhclient br0<br>
>> ><br>
>> > but br0 never gets an IP from my wireless router.<br>
>> ><br>
>> > I also tried to run "ping 192.168.100.254" from the PC and using<br>
>> > tcpdump on the ALIX I can see the ALIX probably never forwards the<br>
>> > DHCP request from eth0 to wlan0.<br>
>> ><br>
>> > thank you,<br>
>> > alfonso<br>
>> ><br>
>> > On Fri, Feb 3, 2012 at 12:51 AM, Gustin Johnson <<a href="mailto:gustin@meganerd.ca">gustin@meganerd.ca</a>><br>
>> > wrote:<br>
>> >> First don't try to use iwpriv.<br>
>> >><br>
>> >> Second WDS stands for wireless distribution system. You are<br>
>> >> essentially<br>
>> >> creating a repeater. If this is what you want then look at hostap as<br>
>> >> you<br>
>> >> are also acting as an AP,<br>
>> >><br>
>> >> If you do not want your wireless card to also be an AP (you did say it<br>
>> >> had<br>
>> >> to be in managed mode), then just configure the wifi card as plain<br>
>> >> client.<br>
>> >><br>
>> >> To do this you need to have the following lines in your interfaces file<br>
>> >> for<br>
>> >> your wireless NIC:<br>
>> >> wpa-ssid MySSID<br>
>> >> wpa-psk someRanDoM_PSK<br>
>> >><br>
>> >> Of course you should put in your own SSID and PSK.<br>
>> >><br>
>> >> Once you are connected all you need to do is bridge the wireless NIC<br>
>> >> with<br>
>> >> the wired ones.<br>
>> >><br>
>> >> Hth,<br>
>> >><br>
>> >> On Wed, Feb 1, 2012 at 6:34 PM, Alfonso Fiore <<a href="mailto:alfonso.fiore@gmail.com">alfonso.fiore@gmail.com</a>><br>
>> >> wrote:<br>
>> >>><br>
>> >>> Hello,<br>
>> >>><br>
>> >>> I'm trying to setup wds using voyage 0.8.0 and an ALIX 3d3 with a<br>
>> >>> dcma81 (Atheros AR5414).<br>
>> >>><br>
>> >>> I first want to setup the wds from command line but every time I try a<br>
>> >>> iwpriv command I get "no private ioctls." error.<br>
>> >>><br>
>> >>> I'm not sure if this really my problem, but I read here (<br>
>> >>> <a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/99432" target="_blank">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/99432</a> ) that some<br>
>> >>> driver doesn't support iwpriv (despite the HW).<br>
>> >>><br>
>> >>> But now if I want to setup a bridge between wlan0 and eth0 what should<br>
>> >>> I<br>
>> >>> do?<br>
>> >>><br>
>> >>> /etc/network/interfaces suggests:<br>
>> >>><br>
>> >>> #auto br0<br>
>> >>> #iface br0 inet static<br>
>> >>> # address 192.168.1.2<br>
>> >>> # netmask 255.255.255.0<br>
>> >>> # network 192.168.1.0<br>
>> >>> # broadcast 192.168.1.255<br>
>> >>> # gateway 192.168.1.1<br>
>> >>> # bridge_ports eth0 wlan0 wlan0wds0<br>
>> >>> # pre-up iwconfig wlan0 mode Master essid voyage-wds channel 1<br>
>> >>> # pre-up iwpriv wlan0 wds_add AA:BB:CC:DD:EE:FF<br>
>> >>><br>
>> >>> but it doesn't work due to iwpriv not working (and I need my wireless<br>
>> >>> to be in Managed mode, but this is irrelevant to this problem).<br>
>> >>><br>
>> >>> I tried to manually bring up wlan0 like this:<br>
>> >>><br>
>> >>> auto wlan0<br>
>> >>> iface wlan0 inet dhcp<br>
>> >>> wpa-driver wext<br>
>> >>> wpa-ssid<br>
>> >>> wpa-psk<br>
>> >>> wpa-key-mgmt WPA-PSK<br>
>> >>> wpa-pairwise TKIP<br>
>> >>> wpa-group TKIP<br>
>> >>> wpa-proto WPA<br>
>> >>> wireless-mode Managed<br>
>> >>><br>
>> >>> and then manually creating a bridge but it doesn't work (and this is<br>
>> >>> why wds exists as far I understand).<br>
>> >>><br>
>> >>> Any help is appreciated.<br>
>> >>><br>
>> >>> Thank you,<br>
>> >>> alfonso<br>
>> >>><br>
>> >>> _______________________________________________<br>
>> >>> Voyage-linux mailing list<br>
>> >>> <a href="mailto:Voyage-linux@list.voyage.hk">Voyage-linux@list.voyage.hk</a><br>
>> >>> <a href="http://list.voyage.hk/mailman/listinfo/voyage-linux" target="_blank">http://list.voyage.hk/mailman/listinfo/voyage-linux</a><br>
>> >><br>
>> >><br>
</div></div></blockquote></div><br></div>