diff --git a/zun/api/controllers/v1/containers.py b/zun/api/controllers/v1/containers.py
index 5da9b27f6..b9ccf1eeb 100644
--- a/zun/api/controllers/v1/containers.py
+++ b/zun/api/controllers/v1/containers.py
@@ -400,7 +400,8 @@ class ContainersController(base.Controller):
                                                network.get('router:external'),
                                            'shared': network.get('shared'),
                                            'v4-fixed-ip': '',
-                                           'v6-fixed-ip': ''})
+                                           'v6-fixed-ip': '',
+                                           'preserve_on_delete': True})
             elif net.get('network'):
                 network = neutron_api.get_neutron_network(net['network'])
                 requested_networks.append({'network': network['id'],
@@ -411,7 +412,8 @@ class ContainersController(base.Controller):
                                            'v4-fixed-ip':
                                                net.get('v4-fixed-ip', ''),
                                            'v6-fixed-ip':
-                                               net.get('v6-fixed-ip', '')})
+                                               net.get('v6-fixed-ip', ''),
+                                           'preserve_on_delete': False})
 
         if not requested_networks:
             # Find an available neutron net and create docker network by
@@ -420,7 +422,8 @@ class ContainersController(base.Controller):
             requested_networks.append({'network': neutron_net['id'],
                                        'port': '',
                                        'v4-fixed-ip': '',
-                                       'v6-fixed-ip': ''})
+                                       'v6-fixed-ip': '',
+                                       'preserve_on_delete': False})
 
         self._check_external_network_attach(context, requested_networks)
         return requested_networks
diff --git a/zun/network/kuryr_network.py b/zun/network/kuryr_network.py
index 15e3e37d3..251f6fcbe 100644
--- a/zun/network/kuryr_network.py
+++ b/zun/network/kuryr_network.py
@@ -192,6 +192,7 @@ class KuryrNetwork(network.Network):
 
         ipv4_address = None
         ipv6_address = None
+        preserve_on_delete = requested_network['preserve_on_delete']
         addresses = []
         for fixed_ip in neutron_port['fixed_ips']:
             ip_address = fixed_ip['ip_address']
@@ -201,14 +202,16 @@ class KuryrNetwork(network.Network):
                 addresses.append({
                     'addr': ip_address,
                     'version': 4,
-                    'port': neutron_port['id']
+                    'port': neutron_port['id'],
+                    'preserve_on_delete': preserve_on_delete
                 })
             else:
                 ipv6_address = ip_address
                 addresses.append({
                     'addr': ip_address,
                     'version': 6,
-                    'port': neutron_port['id']
+                    'port': neutron_port['id'],
+                    'preserve_on_delete': preserve_on_delete
                 })
 
         kwargs = {}
@@ -230,8 +233,9 @@ class KuryrNetwork(network.Network):
         if container.addresses and neutron_network_id:
             addrs_list = container.addresses.get(neutron_network_id, [])
             for addr in addrs_list:
-                port_id = addr['port']
-                neutron_ports.add(port_id)
+                if not addr['preserve_on_delete']:
+                    port_id = addr['port']
+                    neutron_ports.add(port_id)
 
         try:
             self.docker.disconnect_container_from_network(container_id,
diff --git a/zun/tests/unit/api/controllers/v1/test_containers.py b/zun/tests/unit/api/controllers/v1/test_containers.py
index a7f9646a8..a4f44115d 100644
--- a/zun/tests/unit/api/controllers/v1/test_containers.py
+++ b/zun/tests/unit/api/controllers/v1/test_containers.py
@@ -646,6 +646,7 @@ class TestContainerController(api_base.FunctionalTest):
         self.assertEqual(fake_port['network_id'],
                          requested_networks[0]['network'])
         self.assertEqual(fake_port['id'], requested_networks[0]['port'])
+        self.assertTrue(requested_networks[0]['preserve_on_delete'])
 
         def side_effect(*args, **kwargs):
             (ctx, cnt, force) = args
diff --git a/zun/tests/unit/network/test_kuryr_network.py b/zun/tests/unit/network/test_kuryr_network.py
index a09ea69ea..642e09f10 100644
--- a/zun/tests/unit/network/test_kuryr_network.py
+++ b/zun/tests/unit/network/test_kuryr_network.py
@@ -110,9 +110,9 @@ class KuryrNetowrkTestCase(base.TestCase):
         container = Container(self.context, **utils.get_test_container())
         network_name = 'c02afe4e-8350-4263-8078'
         kwargs = {'ip_version': 4, 'ipv4_address': '192.168.2.22',
-                  'port': '1234567'}
+                  'port': '1234567', 'preserve_on_delete': True}
         expected = [{'version': 4, 'addr': '192.168.2.22',
-                     'port': '1234567'}]
+                     'port': '1234567', 'preserve_on_delete': True}]
         address = self.network_api.connect_container_to_network(container,
                                                                 network_name,
                                                                 kwargs)