Comment 2 for bug 1487053

Reviewed: https://review.openstack.org/215142
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=b6fd5b9613203819d24a452df982a76c5e7d1daf
Submitter: Jenkins
Branch: master

commit b6fd5b9613203819d24a452df982a76c5e7d1daf
Author: John Schwarz <email address hidden>
Date: Thu Aug 20 17:05:02 2015 +0300

    Only validate local_ip if using tunneling

    Change I4b4527c28d0738890e33b343c9e17941e780bc24 introduced a new
    validation to make sure that local_ip holds a valid IP that is present
    in one of the interfaces on the machine. However, this test is not
    relevant if tunneling is not enabled, since the value is ignored anyway.

    This patch changes validate_local_ip to not check local_ip in case
    tunneling is not enabled (if no value was put in the 'tunnel_types'
    option).

    Change-Id: I07119341076573a4226b5ad998bdff09c021ae30
    Closes-Bug: #1487053
    Related-Bug: #1408603