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[Adam Gandelman <1361545@xxxxxxxxxxxxxxxxxx>]

** Also affects: neutron/icehouse
   Importance: Undecided
       Status: New

** Changed in: neutron/icehouse
   Importance: Undecided => Low

** Changed in: neutron/icehouse
       Status: New => Fix Committed

** Changed in: neutron/icehouse
    Milestone: None => 2014.1.3

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https://bugs.launchpad.net/bugs/1361545

Title:
  dhcp agent shouldn't spawn metadata-proxy for non-isolated networks

Status in OpenStack Neutron (virtual network service):
  Fix Released
Status in neutron icehouse series:
  Fix Committed

Bug description:
  The "enable_isolated_metadata = True" options tells DHCP agents that for each network under its care, a neutron-ns-metadata-proxy process should be spawned, regardless if it's isolated or not.
  This is fine for isolated networks (networks with no routers and no default gateways), but for networks which are connected to a router (for which the L3 agent spawns a separate neutron-ns-metadata-proxy which is attached to the router's namespace), 2 different metadata proxies are spawned. For these networks, the static routes which are pushed to each instance, letting it know where to search for the metadata-proxy, is not pushed and the proxy spawned from the DHCP agent is left unused.

  The DHCP agent should know if the network it handles is isolated or
  not, and for non-isolated networks, no neutron-ns-metadata-proxy
  processes should spawn.

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