Open Stack

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

On 06/04/2013 01:52 PM, Christopher Armstrong wrote:
> Hi all!
>
> I've been struggling the past couple of days on getting a working
> DevStack so I can start contributing to the Heat project. The problems
> I've been running into are largely networking related. I've tried a
> number of combinations, like using latest git checkouts vs
> stable/grizzly for the various projects, and nova-network vs quantum.
>
> The two common behaviors I'm seeing are
>
> 1. if I use nova-network, I can't route to the guest VMs at all, with
> private or public IP
> 2. if I use quantum, I can route into the guest VMs, and they can route
> to each other, but I can't route out to the Internet (via tthe host
> network).
>
> #2 is really close to working, and I wonder if it's just the thing to be
> expected. If that's the case, what should I be doing to get the VMs to
> be able to route to the outside world? For what it's worth, I followed
> the instructions at https://wiki.openstack.org/wiki/QuantumDevstack to
> get quantum-on-devstack working. I'm using the single-node setup.
>
> I hope to start contributing a lot to the OpenStack project soon!
>
> --
> IRC: radix
> Christopher Armstrong
> Rackspace
>
>
>
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-- 
Sean Dague
http://dague.net