Comment 2 for bug 1452205

looks like ipsec pluto is not running in your machine i.e

https://github.com/openstack/neutron-vpnaas/blob/master/neutron_vpnaas/services/vpn/device_drivers/ipsec.py#L417

        self._execute([self.binary,
                       'pluto',
                       '--ctlbase', self.pid_path,
                       '--ipsecdir', self.etc_dir,
                       '--use-netkey',
                       '--uniqueids',
                       '--nat_traversal',
                       '--secretsfile', self.secrets_file,
                       '--virtual_private', virtual_private
                       ])

might have failed