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 118251b..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
@@ -359,7 +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 = {}
@@ -367,6 +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 = {
diff --git a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
index f118cf1..f1df8a7 100644
--- a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
+++ b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
@@ -1946,8 +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: