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Network help in small environment [closed]

asked 2013-04-29 13:32:13 -0500

OldParrothead gravatar image

updated 2013-04-29 13:47:40 -0500

We are trying to create a small, development environment for OpenStack.

I am implementing Grizzly/Quantum/Nova

For us. we are trying to do this on a laptop with ONE NIC. I have tried a multitude of config's of the network with no success. I would ideally like to just access mt instances from the dashboard, and have them see in and out of our small corporate net, eventually onto the Internet. We have just one router/one local net at in house Not what you would call complicated.....

I have tried the following: Using an image that the image is hard coded: Tested the image under VirtualBox, gets everywhere, including to the net Loaded this image under glance (both CLI and dashboard) to Openstack Created a network called Dev1, admin state, and shared (it comes up and says active) Subnet Dev_local, netaddress, no gateway IP (router is .1), DHCP on and address pool picked in a non-used area (10 addresses) When I create the instance, I get an IP address (according to Dashboard) the first address in my DHCP range, I get a router port with the second. Then, my server gets bridged to nowhere, so I need to kill everything piece by piece.

Tried with DHCP off, dashboard/nova report assignment of, but I can't see the VM, and eth0 comes up active with no IP address, if I try assigning it to an address, we can't see in, and it can't see out onto the main network...

BUT, of I create a second instance, assign it an address (, it can see the other instance and vice versa, but you still cannot see in/out.

I know I've gotta be something really simple in error, but don't know what.. Anybody out there spot something? I'm going even crazier than normal just trying to spot this.

Sorry for the length, but I thought it would save a few questions..

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Closed for the following reason the question is answered, right answer was accepted by fifieldt
close date 2013-06-20 23:31:06.654911


Hi, when you say "the image is hard coded", what does that mean?

fifieldt gravatar imagefifieldt ( 2013-05-10 22:19:11 -0500 )edit

Also - perhaps you could share your configuration files?

fifieldt gravatar imagefifieldt ( 2013-05-10 22:19:36 -0500 )edit

ca you share the instruction steps that you followed to setup openstack ? which quantum plugin you are using? is it linux bridge or openvswitch ? and you are following falt network model or provider network model? pls provide us these information. also it help great helpful if you can copy paste her

sudhir gravatar imagesudhir ( 2013-05-28 09:42:51 -0500 )edit

the output of command brctl show and ovs-vsctl show and ip netns and ip nets exec <your router id > route -n

sudhir gravatar imagesudhir ( 2013-05-28 09:45:53 -0500 )edit

I was off project for awhile and missed these. Will be back next week sometime. Hard coded meant that the IP addresses were static to eliminate a variable(DHCP). I am using linux bridges, and I tried openvswitch as well, Just starting, so it doesn't matter to me. Learning curve either way.

OldParrothead gravatar imageOldParrothead ( 2013-06-13 06:58:35 -0500 )edit

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answered 2013-06-20 13:22:02 -0500

OldParrothead gravatar image

Thanks all for your responses. Moved to a better (?) testbed in hopes of getting some results that make sense.

I have moved from linuxbridge to OVS as most of the more readable docs seem to be working that way, and we have no set environment as of yet.

I'd like to close this issue now, and thank all for their responses, I will take information into consideration as I build my new testing servers.

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Asked: 2013-04-29 13:32:13 -0500

Seen: 168 times

Last updated: Jun 20 '13