Search Linux Wireless

4addr station in a bridge gives 'received own source address' errors

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



I have an AP and 2 stations. The wifi interfaces on the stations are in
bridges. Pinging from one station to the other generates this error.
This does not occur if the station interfaces are not in a bridge.

The bridge puts the station wifi interface in promiscuous mode. After
instrumenting the bridge code, the following seems to be happening. In
the case of a frame sent from S1->AP->S2, S1 also receives the AP->S2
frame. When that frame is converted to 802.3, S1 is the source address
and the bridge code complains.

I don't understand why the station interface needs to be in promiscuous
mode. The 4addr frames would seem to make this unnecessary.

As a test, I ignored promiscuous mode for stations in the ath9k driver
(a hack) and the messages disappeared. The setup then functions as a
client bridge in that computers hooked to one station can ping computers
connected to the other station.

I think this is a bug.

Steve

--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux