Neutron for Dummies

asked 2017-04-13 08:37:28 -0500

toml gravatar image

I have installed Openstack Ocata on a pair of machines that each have two NICs. My local network is, and I've used that network for the management interfaces of the stack (controller is .111 and compute1 is .131).

I used option 1 from the openstack ubuntu install guide for Ocata

I can use horizon to launch vm's on the compute node, and all appears kosher therein, but I can't access these instances over the network from my workstation (or from the controller node).

I've tried making a subnet within on which to place my instances, but I don't have a deep understanding of networking so I'm looking for either a hint as to what important step I might be missing, or a howto that gets me all the way to connectivity. It's also possible that I'm missing some key piece like a programmable router. If that's the case I'd like to know that, too. TIA, Tom

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Normally, VMs get their IPaddresses from DHCP, so the question is whether you use the OpenStack DHCP server or one that exists on that network outside of the cloud. Depending on the VM image you are using, the console log may contain clues: openstack console log show INSTANCE.

Bernd Bausch gravatar imageBernd Bausch ( 2017-04-14 00:40:56 -0500 )edit

Or perhaps you can open the interactive console of an instance from Horizon and snoop around.

Bernd Bausch gravatar imageBernd Bausch ( 2017-04-14 00:42:19 -0500 )edit