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The VM launched from a controller node on a compute host fails to get an IP address.

Solution In Progress - Updated 2016-05-20T18:00:42+00:00 -

Issue

After installing OpenStack through packstack, we have launched a VM on the compute host through the controller host. We have expected to see the IP address getting assigned to the VM launched on the compute host; However the VM did not get any IP. The problem seems to be that the dhcp discover messages are not reaching the tunnel bridge (br-tun) of the compute host it self.

Environment

Red Hat Open Stack 8(Beta)
Red Hat Enterprise Linux 7.2

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