How to configure networking on Controller & Compute nodes

asked 2017-09-21 03:34:15 -0500

Costas gravatar image

updated 2017-09-21 03:35:22 -0500

Dear all,

I would like to know how to configure networking on Controller & Compute nodes (physical machines) in Openstack Newton on Ubuntu 16.04 in order to launch instance?

I have set the below but dosn't work. Is there more configuration?

 root@Controller:~# vim /etc/network/interfaces

 IP address:  Network mask: (or /24)  Network:  Broadcast:  Default gateway:  Dns-nameservers:



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answered 2017-09-21 05:34:09 -0500

Praveen N gravatar image


Please check your file resembles as below for network connection between compute and controller :

vim /etc/network/interfaces

auto enp5s0f1
iface enp5s0f1 inet static

Also how you deployed openstack on Ubuntu 16 ? Ensure all installed services are active and running fine before trying to launch instance.

--Thanks Praveen

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Hello Praveen,

It's the same that yours but I have added broadcast & network

All services are up and running. Also /etc/network/interfaces of compute has interface enp2s0 and IP See the attachment on wetransfer


Costas gravatar imageCostas ( 2017-09-21 06:23:47 -0500 )edit

Hello Praveen, Do you have something else about that?


Costas gravatar imageCostas ( 2017-09-25 09:31:19 -0500 )edit

Hi Costas, Have you configured neutron with openvswitch or linux bridge? since all your services are fine(active), have you created any tenant networks/routers? Thanks Praveen

Praveen N gravatar imagePraveen N ( 2017-09-26 03:44:15 -0500 )edit

Hello Praveen,

I have configured neutron with linux bridge. I have followed the instructions that you will be able to see here ( . Also I have created networks/routers.

Costas gravatar imageCostas ( 2017-09-26 13:29:59 -0500 )edit

Praveen, I have created networks/routers at the end on launch instance and I am not able to ping the network.

Thanks, Costas

Costas gravatar imageCostas ( 2017-09-26 13:30:32 -0500 )edit

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Asked: 2017-09-21 03:34:15 -0500

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Last updated: Sep 21 '17