[ovirt-users] vlan-tagging on non-tagged network

[Felix Pepinghege]

Hi Dan,

I already wrote a new mail to the list in which I elaborate the 
situation. This should answer the last two of your questions (if not, 
I'm happy to provide more information, if I can).
Unfortunately I didn't save the ebtables output that showed the rules I 
ran into, so I don't know them exactly. But I remember them explicitly 
filtering all ARP-packets comming from the vnet with a different mac 
address than the registered one.
However, just running '# ebtables -t nat -L' on a host with existing 
vnets should give you the rules, in case you haven't change any defaults 
of the engine..

Regards,
Felix

On 08/18/2015 11:21 AM, Dan Kenigsberg wrote:
> On Mon, Aug 17, 2015 at 02:05:12PM +0200, Felix Pepinghege wrote:
>> Hi again,
>>
>> I just found the reason for the loss of the packages. Either ovirt or centos
>> install some ebtables rules in the "nat" table. These rules filter ARP
>> packages coming from vnet interfaces. Flushing the table solved my problems.
>> However, I have no idea what the purpose of these rules is, so there might
>> be unwanted side-effects to just flushing the rules away.. But for now I am
>> happy!
>
> Can you share your ebtables before and after flushing?
> How did you flush the faulty rules? Would the proble reappear after next
> reboot?
>
> Dan.
>