diff --git a/ironic_python_agent/api/app.py b/ironic_python_agent/api/app.py
index 28ed03b25..a4575ce7b 100644
--- a/ironic_python_agent/api/app.py
+++ b/ironic_python_agent/api/app.py
@@ -23,7 +23,6 @@ from werkzeug import routing
 from werkzeug.wrappers import json as http_json
 
 from ironic_python_agent import encoding
-from ironic_python_agent import netutils
 
 
 LOG = log.getLogger(__name__)
@@ -86,8 +85,6 @@ def format_exception(value):
 
 class Application(object):
 
-    PORT = 9999
-
     def __init__(self, agent, conf):
         """Set up the API app.
 
@@ -132,10 +129,11 @@ class Application(object):
     def start(self):
         """Start the API service in the background."""
         self.service = wsgi.Server(self._conf, 'ironic-python-agent', app=self,
-                                   host=netutils.get_wildcard_address(),
-                                   port=self.PORT)
+                                   host=self.agent.listen_address.hostname,
+                                   port=self.agent.listen_address.port)
         self.service.start()
-        LOG.info('Started API service on port %s', self.PORT)
+        LOG.info('Started API service on port %s',
+                 self.agent.listen_address.port)
 
     def stop(self):
         """Stop the API service."""
@@ -144,7 +142,8 @@ class Application(object):
             return
         self.service.stop()
         self.service = None
-        LOG.info('Stopped API service on port %s', self.PORT)
+        LOG.info('Stopped API service on port %s',
+                 self.agent.listen_address.port)
 
     def handle_exception(self, environ, exc):
         """Handle an exception during request processing."""
diff --git a/ironic_python_agent/tests/unit/test_agent.py b/ironic_python_agent/tests/unit/test_agent.py
index 6c461ab4c..74719b10b 100644
--- a/ironic_python_agent/tests/unit/test_agent.py
+++ b/ironic_python_agent/tests/unit/test_agent.py
@@ -375,6 +375,51 @@ class TestBaseAgent(ironic_agent_base.IronicAgentTest):
         self.assertEqual('1' * 128, self.agent.agent_token)
         self.assertEqual('1' * 128, self.agent.api_client.agent_token)
 
+    @mock.patch(
+        'ironic_python_agent.hardware_managers.cna._detect_cna_card',
+        mock.Mock())
+    @mock.patch.object(hardware, 'dispatch_to_managers', autospec=True)
+    @mock.patch.object(agent.IronicPythonAgent,
+                       '_wait_for_interface', autospec=True)
+    @mock.patch('oslo_service.wsgi.Server', autospec=True)
+    @mock.patch.object(hardware, 'get_managers', autospec=True)
+    def test_run_listen_host_port(self, mock_get_managers, mock_wsgi,
+                                  mock_wait, mock_dispatch):
+        CONF.set_override('inspection_callback_url', '')
+
+        wsgi_server = mock_wsgi.return_value
+
+        def set_serve_api():
+            self.agent.serve_api = False
+
+        wsgi_server.start.side_effect = set_serve_api
+        self.agent.heartbeater = mock.Mock()
+        self.agent.listen_address = mock.Mock()
+        self.agent.listen_address.hostname = '2001:db8:dead:beef::cafe'
+        self.agent.listen_address.port = 9998
+        self.agent.api_client.lookup_node = mock.Mock()
+        self.agent.api_client.lookup_node.return_value = {
+            'node': {
+                'uuid': 'deadbeef-dabb-ad00-b105-f00d00bab10c'
+            },
+            'config': {
+                'heartbeat_timeout': 300
+            }
+        }
+
+        self.agent.run()
+
+        mock_wsgi.assert_called_once_with(CONF, 'ironic-python-agent',
+                                          app=self.agent.api,
+                                          host='2001:db8:dead:beef::cafe',
+                                          port=9998)
+        wsgi_server.start.assert_called_once_with()
+        mock_wait.assert_called_once_with(mock.ANY)
+        self.assertEqual([mock.call('list_hardware_info'),
+                          mock.call('wait_for_disks')],
+                         mock_dispatch.call_args_list)
+        self.agent.heartbeater.start.assert_called_once_with()
+
     @mock.patch('eventlet.sleep', autospec=True)
     @mock.patch(
         'ironic_python_agent.hardware_managers.cna._detect_cna_card',
diff --git a/releasenotes/notes/respect-listen-directives-94fb863c5b692c07.yaml b/releasenotes/notes/respect-listen-directives-94fb863c5b692c07.yaml
new file mode 100644
index 000000000..3350f9425
--- /dev/null
+++ b/releasenotes/notes/respect-listen-directives-94fb863c5b692c07.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Since the Ussuri release, IPA has ignored the listen_host and listen_port
+    directives. This fixes the behavior and restores those configuration
+    values to working status.
+    https://storyboard.openstack.org/#!/story/2008016