Midonet plugin: Source NAT not applied

[Dave Cahill]

Steps:
Using the MidoNet plugin:
* Create a private network
* Create a VM on the private network
* Create a router
* Create an interface for the router on the private network
* Create an external network
* Set a router's gateway to the external network
* Ping a publicly routable address from a VM on a network attached the router

Observed:
Source NAT is not applied to the outbound traffic

Expected:
Outbound traffic should be source NATted at the router

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/62805

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/62805
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=7dc3c671656974596b9a373c911e5b786d57be35
Submitter: Jenkins
Branch: master

commit 7dc3c671656974596b9a373c911e5b786d57be35
Author: Dave Cahill <email address hidden>
Date: Tue Dec 17 05:52:48 2013 +0000

    Midonet plugin: Fix source NAT

    Source NAT rule was being applied on the incorrect port.
    It was being applied to the Neutron gateway port, not to
    the MidoNet tenant / provider router link port.

    Change-Id: Ib818c09adfb6957b7cad4523e5ce1fdffde9590b
    Closes-Bug: #1261665