diff --git a/kuryr_libnetwork/server.py b/kuryr_libnetwork/server.py
index 82e9292c..4f72160a 100644
--- a/kuryr_libnetwork/server.py
+++ b/kuryr_libnetwork/server.py
@@ -13,23 +13,22 @@
 import sys
 
 from oslo_log import log
+from six.moves.urllib import parse
 
 from kuryr_libnetwork import app
 from kuryr_libnetwork.common import config
 from kuryr_libnetwork import controllers
 
 
-config.init(sys.argv[1:])
-controllers.neutron_client()
-controllers.check_for_neutron_ext_support()
-controllers.check_for_neutron_ext_tag()
-
-log.setup(config.CONF, 'Kuryr')
-
-
 def start():
-    port = int(config.CONF.kuryr_uri.split(':')[-1])
-    app.run("0.0.0.0", port)
+    config.init(sys.argv[1:])
+    controllers.neutron_client()
+    controllers.check_for_neutron_ext_support()
+    controllers.check_for_neutron_ext_tag()
+
+    log.setup(config.CONF, 'Kuryr')
+    kuryr_uri = parse.urlparse(config.CONF.kuryr_uri)
+    app.run(kuryr_uri.hostname, kuryr_uri.port)
 
 
 if __name__ == '__main__':
diff --git a/kuryr_libnetwork/tests/unit/test_config.py b/kuryr_libnetwork/tests/unit/test_config.py
index b122c468..90c40b76 100755
--- a/kuryr_libnetwork/tests/unit/test_config.py
+++ b/kuryr_libnetwork/tests/unit/test_config.py
@@ -12,12 +12,14 @@
 
 import mock
 import os
+import sys
 
 from neutronclient.common import exceptions as n_exceptions
 
 from kuryr.lib import exceptions
 from kuryr_libnetwork.common import config
 from kuryr_libnetwork import controllers
+from kuryr_libnetwork.server import start
 from kuryr_libnetwork.tests.unit import base
 
 
@@ -45,6 +47,12 @@ class ConfigurationTest(base.TestKuryrBase):
         self.assertEqual('http://127.0.0.1:35357/v2.0',
                          config.CONF.keystone_client.auth_uri)
 
+    @mock.patch.object(sys, 'argv', return_value='[]')
+    @mock.patch('kuryr_libnetwork.app.run')
+    def test_start(self, mock_run, mock_sys_argv):
+        start()
+        mock_run.assert_called_once_with('127.0.0.1', 23750)
+
     def test_check_for_neutron_ext_support_with_ex(self):
         with mock.patch.object(controllers.app.neutron,
                             'show_extension') as mock_extension:
diff --git a/requirements.txt b/requirements.txt
index 17fdb9a2..2c0f5d95 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,9 @@ Babel>=2.3.4 # BSD
 Flask!=0.11,<1.0,>=0.10 # BSD
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 netaddr!=0.7.16,>=0.7.12 # BSD
+six>=1.9.0 # MIT
 oslo.concurrency>=3.8.0 # Apache-2.0
+oslo.config>=3.14.0 # Apache-2.0
 oslo.log>=1.14.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.utils>=3.11.0 # Apache-2.0