diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index d30c7dc..a03e587 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -186,6 +186,23 @@
             [data_utils.rand_name('secgroup'),
              data_utils.rand_name('secgroup')])
 
+    @test.attr(type='smoke')
+    def test_create_show_delete_port_user_defined_mac(self):
+        # Create a port for a legal mac
+        _, body = self.client.create_port(network_id=self.network['id'])
+        old_port = body['port']
+        free_mac_address = old_port['mac_address']
+        self.client.delete_port(old_port['id'])
+        # Create a new port with user defined mac
+        _, body = self.client.create_port(network_id=self.network['id'],
+                                          mac_address=free_mac_address)
+        self.addCleanup(self.client.delete_port, body['port']['id'])
+        port = body['port']
+        _, body = self.client.show_port(port['id'])
+        show_port = body['port']
+        self.assertEqual(free_mac_address,
+                         show_port['mac_address'])
+
 
 class PortsAdminExtendedAttrsTestJSON(base.BaseAdminNetworkTest):
     _interface = 'json'