Dariush Pietrzak wrote:
>>It should print some information in /var/log/messages about what packets
>>are dropped and due to which condition.
> 
>  All the messages look like this:
> 
> Sep 30 13:31:11 dfw1 kernel: veth_xmit() dropped pkt reason 4:
> Sep 30 13:31:11 dfw1 kernel:   src = 00:1b:d5:84:90:d2:, dst = 00:08:02:ac:36:20:
>  src mac seem to belong to the stations that my dhcpd is supposed to be
> serving, I don't recognize dst macs though... I'll inwestigate it if that's
> important.

it should be broadcast MAC, not this one.
Can you please check whose MAC is it?
you can you arping for this.


>  To sum up - all the messages claim that drop is due to reason 4
> 
> 
>>+		reason = 4;
>> 		if (compare_ether_addr(((struct ethhdr *)skb->data)->h_dest,
>> 					rcv->dev_addr))
>> 			goto outf;
> 
> 
>  I don't recall if I've mentioned this, but I'm using both bridge, and
> ucarp on top of the bridge.

Yes, most likely ucarp is the reason... I need some reading to understand what it is...
So would be nice if we resolve this and fixed.

Thanks,
Kirill