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Can I allocate different networks to different instances? [closed]

asked 2014-08-25 09:16:20 -0500

mickt gravatar image

I have two networks connected to my OpenStack Icehouse on Ubuntu 14.04 LTS. New instances receive an address from each connected network. Can I configure so that a new instance will receive only one IP address thus allowing me create twice the quantity of instances?

E.g.

network 1: 172.16.100.0/24 network 2: 172.16.101.0/24

I'd like instances to have an interface from either but not both these networks. This will allow me create 508 VMs instead of 254, which is what it seems I currently have.

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Closed for the following reason the question is answered, right answer was accepted by mickt
close date 2015-01-15 04:55:04.941829

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Are you using nova-networks ?

dbaxps gravatar imagedbaxps ( 2014-08-25 11:13:30 -0500 )edit

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answered 2014-08-25 11:29:47 -0500

SGPJ gravatar image

Yes, you can create two private networks and connect them to Public network using OVS then allocate floating IP. The other option is create two public networks with IP address you have mentioned and directly attach VMs while launching.

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answered 2014-08-25 11:19:53 -0500

dbaxps gravatar image

Looks like you are using nova-networks. Allocate different networks to different instances is not a problem in Neutron architecture.

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I understand from another question that I asked and received feedback on that I should disable nova and enable neutron. Don't yet know how to perform this task.

mickt gravatar imagemickt ( 2014-08-26 08:11:01 -0500 )edit

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Asked: 2014-08-25 09:16:20 -0500

Seen: 47 times

Last updated: Aug 25 '14