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Cloud images only bring up one NIC

asked 2013-06-21 16:02:13 -0500

briancline gravatar image

I've noticed with both Ubuntu cloud images and CirrOS images that, even though I provide multiple vnics when creating a VM in Nova, they only bring up the first interface.

After booting, I'm able to confirm by checking the /etc/network/interfaces file, where only lo and eth0 are defined. This seems to be hard-coded for some reason.

When I add eth1, I'm able to bring it up, but this seems counterintuitive to the idea of spinning up ready-to-use VMs.

Is there any way whatsoever to get these to bring up each NIC instead of just one?

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answered 2013-06-21 17:50:09 -0500

Ashokb gravatar image

updated 2013-06-21 18:14:58 -0500

It's something got to be done in the image level. You can create your own image with required no of active nics , you just need to make sure that the nics are mentioned in the network interfaces file . If you are intending to use the default cirros and precise images then only one nic would get activated boot time

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Asked: 2013-06-21 16:02:13 -0500

Seen: 860 times

Last updated: Jun 21 '13