Hi Martin, The way the default network configuration works in OpenNebula is by making the hypervisor hook the virtual network interface of a virtual machine to a pre-existent bridge (created by the administrator), which is, in turn, connected to a real physical device:
+-------------------+ | | | br0 | | | +---+----------+----+ | | | | +---------+ +-----------+ | | | | | eth0 | | vnet0 | | | | | +---------+ +-----------+ br0: bridge created by administrator during the installation process of OpenNebula (which may or may not have an IP) eth0: real physical device (which doesn't have an IP) vnet0: the virtual network device of the virtual machine, created by the hypervisor. You can verify this when running a VM by running the following command in your worker nodes: $ bridge name bridge id STP enabled interfaces br0 8000.001e682f4a02 no eth0 vnet1 br1 8000.001e682f4a03 no eth1 vnet0 In this particular case there are two bridges: br0 and br1 You can read about alternative network setups here: http://opennebula.org/documentation:rel3.0:nm Regards, Jaime On Mon, Nov 14, 2011 at 1:06 PM, Martin Lauer <ml...@hdm-stuttgart.de>wrote: > ** > Hi, > I've set up my machine images with contextualization and they're > configured right, when looking into the machines via VNC. > The leases from my "public.net" are also given to the machines. > Shouldn't the bridge on the host(s) "br0" be mapped with additional IPs > (the ones from the VMs)? This is just an assumption, when thinking back to > Eucalyptus, which I tried to use before as a Private Cloud Infrastructure. > > Can someone give me a hint how routing is done in OpenNebula and how > packets are accepted by the bridge! > > Thanks, > martin > > -- > Martin LauerHochschule der Medien Nobelstraße 10 70569 Stuttgart > > > _______________________________________________ > Users mailing list > Users@lists.opennebula.org > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | jme...@opennebula.org
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