openstack team mailing list archive

[Christopher Armstrong <chris.armstrong@xxxxxxxxxxxxx>]

On Tue, Jun 4, 2013 at 5:02 PM, Christopher Armstrong <
chris.armstrong@xxxxxxxxxxxxx> wrote:

> On Tue, Jun 4, 2013 at 2:44 PM, Christopher Armstrong <
> chris.armstrong@xxxxxxxxxxxxx> wrote:
>
>> On Tue, Jun 4, 2013 at 2:28 PM, Sean Dague <sean@xxxxxxxxx> wrote:
>>
>>> If you are running on recent Ubuntu it appears that you basically need
>>> MULTI_HOST=True set for guest routing to work. Otherwise vhost_net corrupts
>>> the checksums of the dhcp packets, and you're kind of done.
>>>
>>> Been trying to narrow this down as far as possible the last couple of
>>> days (as I have some environments where this works, and some where it
>>> doesn't), but I still don't have a specific narrow work around for it other
>>> than turning on MULTI_HOST.
>>>
>>>         -Sean
>>>
>>>
>> I am indeed using Ubuntu 13.04. Does setting MULTI_HOST imply the need to
>> configure other things? I'll give it a try. If it doesn't seem to work, I
>> can try on a 12.04.
>>
>
>
> Now on an Ubuntu 12.04 install if I try to run devstack with quantum I
> can't route to the guests.
>
>
Sorry, this was just due to a brainfart. I'm actually in exactly the same
situation of being able to route in but not out on the guests in 12.04, so
I guess I'm not running into the same bug you mentioned. It's relieving to
get back to a "known" state :-) But now I guess I have a lot of learning to
do to figure out how to debug the outbound routing.

-- 
IRC: radix
Christopher Armstrong
Rackspace