Hi David, thanks alot, that was it :)
I find it very hard, to get a list of all supported options in nova.conf (and the other confs as well) and what they mean. Is there an easy overview of all of them??? Greetings -Sascha- Am 24.01.2014 15:47, schrieb David Wittman: > It sounds like you may have `share_dhcp_address` set to True in your > nova.conf: > > https://github.com/openstack/nova/blob/master/etc/nova/nova.conf.sample#L1231-L1235 > > Dave > > > On Fri, Jan 24, 2014 at 7:22 AM, Sascha Vogt <sascha.v...@gmail.com > <mailto:sascha.v...@gmail.com>> wrote: > > Hi all, > > I have a Multi-Node, Single-NIC setup. All machines only have a single > NIC. I created a virtual network (using gretap tunnels - aka > layer2-over-layer3 tunnel) to connect all machines and have one br-int > bridge which all VMs are attached to. > > nova-network runs on all machines and correctly binds dnsmasq to the > hosts bridge itself, though I noticed that each host-bridge gets the .1 > IP. This seems to work, because dnsmasq is configured by nova-network to > only answer to DHCP requests the specific instance has a MAC address > for, though I find it a bit irritating. > > I try to give a picture of it: > > controller > - br-int (dnsmasq with .1 address) > - gretap tunnel to compute-1 (using the static IPs of eth0) > - gretap tunnel to compute-2 (using the static IPs of eth0) > - vnet1-n (instances running on this host) > - eth0 (routes between external network and br-int, NAT / ip > forwarding active, static IP used also for OpenStack > managing) > > compute-1 > - br-int (dnsmasq with .1 address) > - gretap tunnel to controller (using the static IPs of eth0) > - vnet1-n (instances running on this host) > - eth0 (OpenStack managing) > > compute-2 > - br-int (dnsmasq with .1 address) > - gretap tunnel to controller (using the static IPs of eth0) > - vnet1-n (instances running on this host) > - eth0 (OpenStack managing) > > I'm using the FlatDHCPManager, and if you substitue eth0/the-switch in > this picture > > http://www.mirantis.com/wp-content/uploads/2012/07/flat-dhcp-networking-diagrams-4.png > with the gretap tunnels I basically have that topology. In that picture > the dnsmasqs/br100 have different IPs. How did they get that? ;) > > Greetings > -Sascha- _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
