This bug was fixed in the package neutron - 1:2015.1.2-0ubuntu1

---------------
neutron (1:2015.1.2-0ubuntu1) vivid; urgency=medium

  [ Chuck Short ]
  * Resynchronize with stable/kilo (7dbaa12) (LP: #1506058):
    - [7dbaa12] Changed filter field to router_id
    - [6c55f58] Do not log an error when deleting a linuxbridge does not exist
    - [118a76f] metadata: don't crash proxy on non-unicode user data
    - [eec8c50] Only get host data for floating ips on DVR routers
    - [9950ce2] Update dhcp host portbinding on failover
    - [1c87d72] func: Don't use private method of AsyncProcess
    - [834279c] Allow setting Agents description to None
    - [2f85b22] Process user iptables rules before INVALID
    - [f232475] Execute ipset command using check_exit_code
    - [d78899d] Don't write DHCP opts for SLAAC entries
    - [cb0554f] Check idl.run() return value before blocking
    - [2224851] Stop sending gratuitous arp when ip version is 6
    - [96276d5] Fix _ensure_default_security_group logic
    - [66a5116] Remove hack for sending gratuitous arp from fip ns
    - [2394418] populate port security default into network
    - [fc1c812] Remove early yields in _iter_hosts in dhcp agent
    - [2ead51a] Enable servicing lbaasV2 vip by DVR
    - [9498ea2] Descheduling DVR routers when ports are unbound from VM
    - [c74b05e] Bug-Fix for unexpected DHCP agent redundant
    - [e6a0e7d] Switch to dictionary for iptables find
    - [c377330] Add configurable options for HA networks
    - [114949b] Fix ipset can't be destroyed when last rule is deleted
    - [aba5e82] Updated NSXv plugin parameter descriptions
    - [d1a48f7] ovs: don't use ARP responder for IPv6 addresses
    - [4d15b6f] Configure gw_iface for RAs only in Master HA Router
    - [6975b2b] Register extraroute extension
    - [19d5ba4] Broadcast service port's arp in DVR
    - [767cea2] Stop device_owner from being set to 'network:*'
    - [2a6b34e] Fix a wrong condition for the _purge_metering_info function
    - [bf28c72] Add ARP spoofing protection for LinuxBridge agent
    - [635d5cf] Correct neutron-ns-metadata-proxy command when watch_log is
                False
    - [cc791b0] Fix usage of netaddr '.broadcast'
    - [f57a90a] Switch to using os-testr's copy of subunit2html
    - [c1201a2] Add optional file permission argument to replace_file()
    - [533900c] Adding loadbalanacerv2 device owner constant to neutron
                constants
    - [2a00016] Don't fatal error during initialization for missing service
                providers
    - [7c2727c] Update port bindings for master router
    - [6298a90] Setup reference service providers for API test runs
    - [6167d44] Move away nested transaction from _ensure_default_security_group
    - [c129bfa] Reject router-interface-add with a port which doesn't have any
                addresses
    - [770a105] SR-IOV: Fix SR-IOV agent to run ip link commands as root
    - [a0632d7] Catch ObjectDeletedError and skip port or subnet removal
    - [c4c8686] Cleanup stale metadata processes on l3 agent sync
    - [0c22d15] Bump stable/kilo next version to 2015.1.2
    - [4f9409d] lb-agent: ensure tap mtu is the same as physical device
    - [5d38dc5] Adds garp_master_repeat and garp_master_refresh to
                keepalived.conf
    - [e759c1c] Lower log level of errors caused by user requests to INFO
    - [1a1cc3d] Fix race condition by using lock on enable_radvd
    - [5827664] Remove bridge cleanup call
    - [23f5134] Added networking-plumgrid in plugin requirements

  [ Corey Byrant ]
  * d/rules: Prevent dh_python2 from guessing dependencies.

 -- Chuck Short <email address hidden>  Thu, 15 Oct 2015 08:56:04 -0400