Open Stack

Hello,

I was hoping to please get assistance with the following issue.  I have a system running Ubuntu 15.04 running
Openstack Kilo.  This system initially worked properly, with instances being able to launch and ssh in through
the associated floating IPs. Oddly enough, the system now fails to work.

Symptoms: Instance is able to launch. Nova reports that floating IP is assigned to the instance. However, 
we are not able to ping nor SSH into the instance.  This worked previously, security groups have been
configured.

I checked the neutron L3 agent logs and notice the following:
2015-09-11 21:24:06.699 23088 WARNING neutron.agent.l3.router_info [-] Unable to configure IP address for floating IP: ebd306e5-eb39-4a1c-b707-fde0ef76e020
2015-09-11 21:24:06.701 23088 INFO neutron.callbacks.manager [-] Notify callbacks for router, after_create
2015-09-11 21:24:06.701 23088 INFO neutron.callbacks.manager [-] Calling callback neutron.agent.metadata.driver.after_router_added
2015-09-11 21:24:30.565 23088 INFO neutron.openstack.common.service [req-36496d2f-6a01-49f5-8cbd-12f96bef423a ] Caught SIGTERM, exiting
2015-09-11 21:24:30.914 23088 ERROR oslo_messaging._drivers.impl_rabbit [-] Failed to consume message from queue:
2015-09-11 21:24:33.232 23551 INFO neutron.common.config [-] Logging enabled!
2015-09-11 21:24:33.232 23551 INFO neutron.common.config [-] /usr/bin/neutron-l3-agent version 2015.1.1
2015-09-11 21:24:33.420 23551 INFO oslo_messaging._drivers.impl_rabbit [req-26e0b08f-7866-486a-9237-f00e58e9e865 ] Connecting to AMQP server on controller:5672
2015-09-11 21:24:33.453 23551 INFO oslo_messaging._drivers.impl_rabbit [req-26e0b08f-7866-486a-9237-f00e58e9e865 ] Connected to AMQP server on controller:5672
2015-09-11 21:24:33.463 23551 INFO oslo_messaging._drivers.impl_rabbit [req-26e0b08f-7866-486a-9237-f00e58e9e865 ] Connecting to AMQP server on controller:5672
2015-09-11 21:24:33.490 23551 INFO oslo_messaging._drivers.impl_rabbit [req-26e0b08f-7866-486a-9237-f00e58e9e865 ] Connected to AMQP server on controller:5672
2015-09-11 21:24:33.529 23551 INFO oslo_messaging._drivers.impl_rabbit [-] Connecting to AMQP server on controller:5672
2015-09-11 21:24:33.551 23551 INFO eventlet.wsgi.server [-] (23551) wsgi starting up on http:///:v/
2015-09-11 21:24:33.561 23551 INFO oslo_messaging._drivers.impl_rabbit [-] Connected to AMQP server on controller:5672
2015-09-11 21:24:33.581 23551 INFO neutron.agent.l3.agent [-] L3 agent started
2015-09-11 21:24:34.365 23551 INFO neutron.callbacks.manager [-] Notify callbacks for router, before_create
2015-09-11 21:24:44.465 23551 ERROR neutron.agent.linux.utils [-]
Command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'exec', 'qrouter-7fcb716f-a75d-4a23-bd17-433b31ec78d8', 'ip', '-4', 'addr', 'add', '10.0.4.13/32', 'scope', 'global', 'dev', 'qg-10975ef5-4b', 'brd', 'None']
Exit code: 1
Stdin:
Stdout:
Stderr: Error: an inet address is expected rather than "None".

Would anyone happen to have advice on how to fix this? It looks like for some reason, the broadcast address is not being populated 
in the command.

Thanks,
Geoffrey