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Hi, all.  I've got two instances -- a Juno and an Icehouse -- both set 
up via Ubuntu/Juju.  And neither of them shows "allowed address pairs" 
when I do a "neutron ext-list" (I've tried on both the neutron-gateway 
and nova-cloud-controller).  From everything my co-worker and I have 
read, it seems like it *should* be in both of them, leading us to assume 
that we've somehow disabled that particular functionality.

Any ideas on what to look at?

Thanks much,

-Ken