[one-users] Multicast problem

[Luis Rodero-Merino]

Well we've solved it. It was necessary to run

$ route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0

to get multicast working. We have just added it to /etc/rc.local so it
is executed at boot time.

What we don't understand yet is why this is necessary in our ONE
installation and not when running the same VM in a local hypervisor.

Regards,
Luis

On Mon, May 16, 2011 at 11:41 AM, Luis Rodero-Merino <lrodero at fi.upm.es> wrote:
> Hello,
>
> We are able to run VMs with OpenNebula, but we have found that
> multicast does not work properly. We are using a Ubuntu Server 10.04
> based VM, virtualization with kvm. Multicast with that VM works fine
> when running it in a local hypervisor. Multicast also works fine on
> the physical hosts. But when the VM is started through OpenNebula,
> although it has network connectivity (it can ping, ssh... other
> hosts), we find it cannot even join multicast groups ¿Could this be
> related with the bridge, or with the configuration that OpenNebula
> passes to libvirt? ¿Has anyone found this before?
>
> Thanks in advance for your help, regards,
> Luis
>
> --
> ----------------------------------------
> Dr. Luis Rodero-Merino
> Researcher @ Distributed Systems Laboratory (http://lsd.ls.fi.upm.es),
> Computer Science School, Madrid Polytechnic University.
> Phone: (34)913363681, Fax: (34)913363669
> Address: Campus de Montegancedo, Bloque 2, L 3201
> CP: 28660, Boadilla del Monte (Madrid), Spain
> ----------------------------------------
>



-- 
----------------------------------------
Dr. Luis Rodero-Merino
Researcher @ Distributed Systems Laboratory (http://lsd.ls.fi.upm.es),
Computer Science School, Madrid Polytechnic University.
Phone: (34)913363681, Fax: (34)913363669
Address: Campus de Montegancedo, Bloque 2, L 3201
CP: 28660, Boadilla del Monte (Madrid), Spain
----------------------------------------