diff --git a/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py b/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py
index 1de45fd..b6fff18 100644
--- a/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py
+++ b/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py
@@ -103,6 +103,11 @@
 }
 
 
+def check_if_assert_not_called(mocks: list):
+    for mocking in mocks:
+        mocking.assert_not_called()
+
+
 class Status:
     def __init__(self, s):
         self.status = s
@@ -354,7 +359,7 @@
         self.vimconn._prepare_port_dict_mac_ip_addr(net, port_dict)
         self.assertDictEqual(port_dict, result_dict)
 
-    def test_prepare_port_dict_mac_ip_addr_no_mac_and_ip(self):
+    def test_prepare_port_dict_mac_ip_addr_empty_net(self):
         """mac address and ip address does not exist."""
         net = {}
         port_dict = {}
@@ -362,6 +367,67 @@
         self.vimconn._prepare_port_dict_mac_ip_addr(net, port_dict)
         self.assertDictEqual(port_dict, result_dict)
 
+    def test_prepare_port_dict_mac_ip_addr_dual(self):
+        """mac address, ipv4 and ipv6 addresses exist."""
+        net = {
+            "mac_address": mac_address,
+            "ip_address": ["10.0.1.5", "2345:0425:2CA1:0000:0000:0567:5673:23b5"],
+        }
+        port_dict = {}
+        result_dict = {
+            "mac_address": mac_address,
+            "fixed_ips": [
+                {"ip_address": "10.0.1.5"},
+                {"ip_address": "2345:0425:2CA1:0000:0000:0567:5673:23b5"},
+            ],
+        }
+        self.vimconn._prepare_port_dict_mac_ip_addr(net, port_dict)
+        self.assertDictEqual(port_dict, result_dict)
+
+    def test_prepare_port_dict_mac_ip_addr_dual_ip_addr_is_not_list(self):
+        """mac address, ipv4 and ipv6 addresses exist."""
+        net = {
+            "mac_address": mac_address,
+            "ip_address": "10.0.1.5",
+        }
+        port_dict = {}
+        result_dict = {
+            "mac_address": mac_address,
+            "fixed_ips": [
+                {"ip_address": "10.0.1.5"},
+            ],
+        }
+        self.vimconn._prepare_port_dict_mac_ip_addr(net, port_dict)
+        self.assertDictEqual(port_dict, result_dict)
+
+    def test_prepare_port_dict_mac_ip_addr_dual_net_without_ip_addr(self):
+        """mac address, ipv4 and ipv6 addresses exist."""
+        net = {
+            "mac_address": mac_address,
+            "ip_address": [],
+        }
+        port_dict = {}
+        result_dict = {
+            "mac_address": mac_address,
+        }
+        self.vimconn._prepare_port_dict_mac_ip_addr(net, port_dict)
+        self.assertDictEqual(port_dict, result_dict)
+
+    def test_prepare_port_dict_mac_ip_addr_dual_net_without_mac_addr(self):
+        """mac address, ipv4 and ipv6 addresses exist."""
+        net = {
+            "ip_address": ["10.0.1.5", "2345:0425:2CA1:0000:0000:0567:5673:23b5"],
+        }
+        port_dict = {}
+        result_dict = {
+            "fixed_ips": [
+                {"ip_address": "10.0.1.5"},
+                {"ip_address": "2345:0425:2CA1:0000:0000:0567:5673:23b5"},
+            ],
+        }
+        self.vimconn._prepare_port_dict_mac_ip_addr(net, port_dict)
+        self.assertDictEqual(port_dict, result_dict)
+
     def test_create_new_port(self):
         """new port has id and mac address."""
         new_port = {
@@ -374,7 +440,7 @@
         net, port_dict, created_items = {}, {}, {}
         expected_result = new_port
         expected_net = {
-            "mac_adress": mac_address,
+            "mac_address": mac_address,
             "vim_id": port_id,
         }
         expected_created_items = {f"port:{port_id}": True}
@@ -4777,7 +4843,6 @@
         self.assertDictEqual(result, created_items)
 
     def test_update_block_device_mapping_empty_volume(self):
-        """"""
         volume = ""
         block_device_mapping = {}
         base_disk_index = 100
@@ -4792,7 +4857,6 @@
         self.assertEqual(created_items, {})
 
     def test_update_block_device_mapping_invalid_volume(self):
-        """"""
         volume = "Volume-A"
         block_device_mapping = {}
         base_disk_index = 100
@@ -4809,7 +4873,6 @@
         self.assertEqual(created_items, {})
 
     def test_update_block_device_mapping(self):
-        """"""
         volume = MagicMock(autospec=True)
         volume.id = volume_id
         block_device_mapping = {}
@@ -4827,7 +4890,6 @@
         )
 
     def test_update_block_device_mapping_with_keep_flag(self):
-        """"""
         volume = MagicMock(autospec=True)
         volume.id = volume_id
         block_device_mapping = {}
@@ -4892,6 +4954,67 @@
         with self.assertRaises(AttributeError):
             self.vimconn._extract_items_wth_keep_flag_from_created_items(created_items)
 
+    @patch.object(vimconnector, "_reload_connection", new_callable=CopyingMock())
+    def test_get_monitoring_data(self, mock_reload_conection):
+        servers = ["server1", "server2"]
+        ports = {"ports": ["port1", "port2"]}
+        self.vimconn.nova.servers.list.return_value = servers
+        self.vimconn.neutron.list_ports.return_value = ports
+        result = self.vimconn.get_monitoring_data()
+        self.assertTupleEqual(result, (servers, ports))
+        mock_reload_conection.assert_called_once()
+        self.vimconn.nova.servers.list.assert_called_once_with(detailed=True)
+        self.vimconn.neutron.list_ports.assert_called_once()
+
+    @patch.object(vimconnector, "_reload_connection", new_callable=CopyingMock())
+    def test_get_monitoring_data_reload_connection_raises(self, mock_reload_conection):
+        mock_reload_conection.side_effect = VimConnNotFoundException(
+            "Connection object not found."
+        )
+        with self.assertRaises(VimConnException) as err:
+            result = self.vimconn.get_monitoring_data()
+            self.assertTupleEqual(result, None)
+        self.assertEqual(
+            str(err.exception.args[0]),
+            "Exception in monitoring while getting VMs and ports status: Connection object not found.",
+        )
+        mock_reload_conection.assert_called_once()
+        check_if_assert_not_called(
+            [self.vimconn.nova.servers.list, self.vimconn.neutron.list_ports]
+        )
+
+    @patch.object(vimconnector, "_reload_connection", new_callable=CopyingMock())
+    def test_get_monitoring_data_server_list_raises(self, mock_reload_conection):
+        self.vimconn.nova.servers.list.side_effect = VimConnConnectionException(
+            "Can not connect to Cloud API."
+        )
+        with self.assertRaises(VimConnException) as err:
+            result = self.vimconn.get_monitoring_data()
+            self.assertTupleEqual(result, None)
+        self.assertEqual(
+            str(err.exception.args[0]),
+            "Exception in monitoring while getting VMs and ports status: Can not connect to Cloud API.",
+        )
+        mock_reload_conection.assert_called_once()
+        self.vimconn.nova.servers.list.assert_called_once_with(detailed=True)
+        self.vimconn.neutron.list_ports.assert_not_called()
+
+    @patch.object(vimconnector, "_reload_connection", new_callable=CopyingMock())
+    def test_get_monitoring_data_list_ports_raises(self, mock_reload_conection):
+        self.vimconn.neutron.list_ports.side_effect = VimConnConnectionException(
+            "Can not connect to Cloud API."
+        )
+        with self.assertRaises(VimConnException) as err:
+            result = self.vimconn.get_monitoring_data()
+            self.assertTupleEqual(result, None)
+        self.assertEqual(
+            str(err.exception.args[0]),
+            "Exception in monitoring while getting VMs and ports status: Can not connect to Cloud API.",
+        )
+        mock_reload_conection.assert_called_once()
+        self.vimconn.nova.servers.list.assert_called_once_with(detailed=True)
+        self.vimconn.neutron.list_ports.assert_called_once()
+
 
 class TestNewFlavor(unittest.TestCase):
     @patch("logging.getLogger", autospec=True)
@@ -4916,11 +5039,6 @@
         self.new_flavor.id = "075d2482-5edb-43e3-91b3-234e65b6268a"
         self.vimconn.nova.flavors.create.return_value = self.new_flavor
 
-    @staticmethod
-    def check_if_assert_not_called(mocks: list):
-        for mocking in mocks:
-            mocking.assert_not_called()
-
     @patch.object(vimconnector, "process_vio_numa_nodes", new_callable=CopyingMock())
     @patch.object(vimconnector, "process_numa_memory", new_callable=CopyingMock())
     @patch.object(vimconnector, "process_numa_vcpu", new_callable=CopyingMock())
@@ -5003,7 +5121,7 @@
             ),
         )
         self.assertDictEqual(extra_specs, expected_extra_specs)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_process_numa_threads,
                 mock_process_numa_cores,
@@ -5082,7 +5200,7 @@
             ),
         )
         self.assertDictEqual(extra_specs, expected_extra_specs)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_process_numa_threads,
                 mock_process_numa_cores,
@@ -5124,9 +5242,7 @@
         mock_process_numa_paired_threads.side_effect = [6, 6]
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
 
-        self.check_if_assert_not_called(
-            [mock_process_numa_threads, mock_process_numa_cores]
-        )
+        check_if_assert_not_called([mock_process_numa_threads, mock_process_numa_cores])
         self.assertEqual(mock_process_numa_memory.call_count, 2)
         self.assertEqual(mock_process_numa_vcpu.call_count, 2)
         self.assertEqual(mock_process_numa_paired_threads.call_count, 2)
@@ -5182,9 +5298,7 @@
         self.vimconn.vim_type = "VIO"
         mock_process_numa_paired_threads.side_effect = [4, 4]
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
-        self.check_if_assert_not_called(
-            [mock_process_numa_threads, mock_process_numa_cores]
-        )
+        check_if_assert_not_called([mock_process_numa_threads, mock_process_numa_cores])
         self.assertEqual(mock_process_numa_paired_threads.call_count, 2)
         self.assertEqual(mock_process_numa_memory.call_count, 2)
         self.assertEqual(mock_process_numa_vcpu.call_count, 2)
@@ -5252,7 +5366,7 @@
         mock_process_numa_cores.side_effect = [1, 2]
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
 
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [mock_process_numa_threads, mock_process_numa_paired_threads]
         )
         self.assertEqual(mock_process_numa_cores.call_count, 2)
@@ -5301,7 +5415,7 @@
         self.vimconn.vim_type = "VIO"
         mock_process_numa_cores.side_effect = [1, 2]
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [mock_process_numa_threads, mock_process_numa_paired_threads]
         )
         self.assertEqual(mock_process_numa_memory.call_count, 2)
@@ -5366,7 +5480,7 @@
         self.vimconn.vim_type = "VIO"
         mock_process_numa_threads.return_value = 3
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_process_numa_memory,
                 mock_process_numa_vcpu,
@@ -5425,7 +5539,7 @@
         mock_process_numa_threads.return_value = 3
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
 
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_process_numa_memory,
                 mock_process_numa_vcpu,
@@ -5470,7 +5584,7 @@
         expected_extra_specs = {"hw:numa_nodes": "0"}
         self.vimconn.vim_type = "VIO"
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_process_numa_memory,
                 mock_process_numa_vcpu,
@@ -5509,7 +5623,7 @@
         mock_process_numa_threads.return_value = None
         self.vimconn._process_numa_parameters_of_flavor(numas, extra_specs)
 
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_process_numa_memory,
                 mock_process_numa_vcpu,
@@ -6146,7 +6260,7 @@
         extended = {}
         extra_specs = {}
         self.vimconn._process_extended_config_of_flavor(extended, extra_specs)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [mock_process_resource_quota, mock_process_numa_parameters_of_flavor]
         )
         self.assertEqual(extra_specs, {})
@@ -6258,9 +6372,7 @@
         self.vimconn.nova.flavors.create.assert_called_once_with(
             name=name1, ram=3, vcpus=vcpus, disk=50, ephemeral=0, swap=0, is_public=True
         )
-        self.check_if_assert_not_called(
-            [self.new_flavor.set_keys, mock_format_exception]
-        )
+        check_if_assert_not_called([self.new_flavor.set_keys, mock_format_exception])
 
     @patch.object(vimconnector, "_get_flavor_details", new_callable=CopyingMock())
     @patch.object(
@@ -6291,7 +6403,7 @@
         self.vimconn.nova.flavors.create.assert_called_once_with(
             name=name1, ram=3, vcpus=8, disk=50, ephemeral=0, swap=0, is_public=True
         )
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [mock_change_flavor_name, mock_format_exception, self.new_flavor.set_keys]
         )
 
@@ -6327,7 +6439,7 @@
         self.vimconn.nova.flavors.create.assert_called_once_with(
             name=name1, ram=3, vcpus=8, disk=50, ephemeral=0, swap=0, is_public=True
         )
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 self.new_flavor.set_keys,
                 mock_extended_config_of_flavor,
@@ -6365,7 +6477,7 @@
         self.assertEqual(
             str(call_mock_format_exception[0][0]), str(ClientException(error_msg))
         )
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_change_flavor_name,
                 mock_get_flavor_details,
@@ -6404,7 +6516,7 @@
         self.assertEqual(
             str(call_mock_format_exception[0][0]), str(KeyError(error_msg))
         )
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 mock_reload_connection,
                 mock_change_flavor_name,
@@ -6454,9 +6566,7 @@
             swap=0,
             is_public=True,
         )
-        self.check_if_assert_not_called(
-            [self.new_flavor.set_keys, mock_format_exception]
-        )
+        check_if_assert_not_called([self.new_flavor.set_keys, mock_format_exception])
 
     @patch.object(vimconnector, "_get_flavor_details", new_callable=CopyingMock())
     @patch.object(
@@ -6498,7 +6608,7 @@
             swap=0,
             is_public=True,
         )
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [
                 self.new_flavor.set_keys,
                 mock_extended_config_of_flavor,
@@ -6546,7 +6656,7 @@
         self.assertEqual(mock_get_flavor_details.call_count, 3)
         self.assertEqual(self.vimconn.nova.flavors.create.call_count, 3)
         self.assertEqual(mock_reload_connection.call_count, 3)
-        self.check_if_assert_not_called(
+        check_if_assert_not_called(
             [mock_change_flavor_name, mock_extended_config_of_flavor]
         )
         _call_mock_format_exception = mock_format_exception.call_args
@@ -6739,7 +6849,6 @@
         numa_nodes = 0
         extra_specs = {"hw:numa_nodes": "0"}
         expected_extra_spec = {
-            "vmware:extra_config": '{"numa.nodeAffinity":"0"}',
             "vmware:latency_sensitivity_level": "high",
             "hw:numa_nodes": "0",
         }
@@ -6771,7 +6880,6 @@
         expected_extra_spec = {
             "vmware:latency_sensitivity_level": "high",
             "hw:numa_nodes": "None",
-            "vmware:extra_config": '{"numa.nodeAffinity":"0"}',
         }
         self.vimconn.process_vio_numa_nodes(numa_nodes, extra_specs)
         self.assertDictEqual(extra_specs, expected_extra_spec)
diff --git a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
index 9faf98d..f1df8a7 100644
--- a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
+++ b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
@@ -355,12 +355,21 @@
                 endpoint_type=self.endpoint_type,
                 region_name=region_name,
             )
-            self.cinder = self.session["cinder"] = cClient.Client(
-                2,
-                session=sess,
-                endpoint_type=self.endpoint_type,
-                region_name=region_name,
-            )
+
+            if sess.get_all_version_data(service_type="volumev2"):
+                self.cinder = self.session["cinder"] = cClient.Client(
+                    2,
+                    session=sess,
+                    endpoint_type=self.endpoint_type,
+                    region_name=region_name,
+                )
+            else:
+                self.cinder = self.session["cinder"] = cClient.Client(
+                    3,
+                    session=sess,
+                    endpoint_type=self.endpoint_type,
+                    region_name=region_name,
+                )
 
             try:
                 self.my_tenant_id = self.session["my_tenant_id"] = sess.get_project_id()
@@ -880,7 +889,7 @@
 
             if not ip_profile.get("subnet_address"):
                 # Fake subnet is required
-                subnet_rand = random.randint(0, 255)
+                subnet_rand = random.SystemRandom().randint(0, 255)
                 ip_profile["subnet_address"] = "192.168.{}.0/24".format(subnet_rand)
 
             if "ip_version" not in ip_profile:
@@ -925,6 +934,15 @@
                 ip_str = str(netaddr.IPAddress(ip_int))
                 subnet["allocation_pools"][0]["end"] = ip_str
 
+            if (
+                ip_profile.get("ipv6_address_mode")
+                and ip_profile["ip_version"] != "IPv4"
+            ):
+                subnet["ipv6_address_mode"] = ip_profile["ipv6_address_mode"]
+                # ipv6_ra_mode can be set to the same value for most use cases, see documentation:
+                # https://docs.openstack.org/neutron/latest/admin/config-ipv6.html#ipv6-ra-mode-and-ipv6-address-mode-combinations
+                subnet["ipv6_ra_mode"] = ip_profile["ipv6_address_mode"]
+
             # self.logger.debug(">>>>>>>>>>>>>>>>>> Subnet: %s", str(subnet))
             self.neutron.create_subnet({"subnet": subnet})
 
@@ -1393,10 +1411,6 @@
             extra_specs     (dict):        Extra specs dict to be updated
 
         """
-        # If there is not any numa, numas_nodes equals to 0.
-        if not numa_nodes:
-            extra_specs["vmware:extra_config"] = '{"numa.nodeAffinity":"0"}'
-
         # If there are several numas, we do not define specific affinity.
         extra_specs["vmware:latency_sensitivity_level"] = "high"
 
@@ -1932,8 +1946,14 @@
         if net.get("mac_address"):
             port_dict["mac_address"] = net["mac_address"]
 
-        if net.get("ip_address"):
-            port_dict["fixed_ips"] = [{"ip_address": net["ip_address"]}]
+        ip_dual_list = []
+        if ip_list := net.get("ip_address"):
+            if not isinstance(ip_list, list):
+                ip_list = [ip_list]
+            for ip in ip_list:
+                ip_dict = {"ip_address": ip}
+                ip_dual_list.append(ip_dict)
+            port_dict["fixed_ips"] = ip_dual_list
             # TODO add "subnet_id": <subnet_id>
 
     def _create_new_port(self, port_dict: dict, created_items: dict, net: dict) -> Dict:
@@ -1950,7 +1970,7 @@
         """
         new_port = self.neutron.create_port({"port": port_dict})
         created_items["port:" + str(new_port["port"]["id"])] = True
-        net["mac_adress"] = new_port["port"]["mac_address"]
+        net["mac_address"] = new_port["port"]["mac_address"]
         net["vim_id"] = new_port["port"]["id"]
 
         return new_port
@@ -3798,3 +3818,19 @@
             self.__wait_for_vm(vm_id, "ACTIVE")
         instance_status = self.get_vdu_state(vm_id)[0]
         return instance_status
+
+    def get_monitoring_data(self):
+        try:
+            self.logger.debug("Getting servers and ports data from Openstack VIMs.")
+            self._reload_connection()
+            all_servers = self.nova.servers.list(detailed=True)
+            all_ports = self.neutron.list_ports()
+            return all_servers, all_ports
+        except (
+            vimconn.VimConnException,
+            vimconn.VimConnNotFoundException,
+            vimconn.VimConnConnectionException,
+        ) as e:
+            raise vimconn.VimConnException(
+                f"Exception in monitoring while getting VMs and ports status: {str(e)}"
+            )