diff --git a/vmware_nsx_tempest_plugin/lib/appliance_manager.py b/vmware_nsx_tempest_plugin/lib/appliance_manager.py
index 7a39a0b..d3d1008 100644
--- a/vmware_nsx_tempest_plugin/lib/appliance_manager.py
+++ b/vmware_nsx_tempest_plugin/lib/appliance_manager.py
@@ -409,6 +409,21 @@ class ApplianceManager(manager.NetworkScenarioTest):
                             "No IPv4 addresses found in: %s" % ports)
         return port_map
 
+    def add_router_interface(
+            self,
+            router_id,
+            subnet_id,
+            router_client=None):
+        if router_client is None:
+            router_client = self.routers_client
+        interface = router_client.add_router_interface(router_id,
+            subnet_id=subnet_id)
+        self.addCleanup(
+            test_utils.call_and_ignore_notfound_exc,
+            router_client.remove_router_interface, router_id,
+            subnet_id=subnet_id)
+        return interface
+
     def remove_router_interface(
             self,
             router_id,
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_ipv6_external_network.py b/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_ipv6_external_network.py
index ede1467..c4e91b6 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_ipv6_external_network.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_ipv6_external_network.py
@@ -13,7 +13,6 @@
 
 from tempest import config
 from tempest.lib import decorators
-from tempest.lib import exceptions as lib_exc
 
 from vmware_nsx_tempest_plugin.lib import feature_manager
 CONF = config.CONF
@@ -88,7 +87,7 @@ class IPv6ExternalNetworksTest(feature_manager.FeatureManager):
     def test_create_ipv6_external_gateway_snat(self):
         """
         Test create IPv6 external network
-        Verify the router can not be configured with IPv6 gateway with SNAT
+        Verify the router can be configured with IPv6 gateway with SNAT
         """
         name = "ipv6-ext-network"
         networks_client = self.cmgr_adm.networks_client
@@ -108,9 +107,16 @@ class IPv6ExternalNetworksTest(feature_manager.FeatureManager):
             cidr="2000:20:20::/64",
             **allocation_pools)
         #Create a router and set gateway to an IPv6 external network
-        self.assertRaises(lib_exc.BadRequest,
-                          self.create_topology_router,
-                          router_name="ipv6-rtr",
-                          routers_client=self.cmgr_adm.routers_client,
-                          set_gateway=True, enable_snat=True,
-                          ext_netid=ext_network['id'])
+        router = self.create_topology_router(
+            "ipv6-rtr", routers_client=self.cmgr_adm.routers_client,
+            set_gateway=True, enable_snat=True,
+            ext_netid=ext_network['id'])
+        show_body = self.show_topology_router(router['id'],
+            routers_client=self.cmgr_adm.routers_client)
+        self.assertEqual(show_body['router']['id'], router['id'])
+        self.assertEqual(
+            show_body['router']['external_gateway_info']['enable_snat'],
+            True)
+        self.assertEqual(
+            show_body['router']['external_gateway_info']['network_id'],
+            ext_network['id'])
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_ipv6_router.py b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_ipv6_router.py
new file mode 100644
index 0000000..8d6c25a
--- /dev/null
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_ipv6_router.py
@@ -0,0 +1,216 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from tempest import config
+from tempest.lib.common.utils import data_utils
+from tempest.lib import decorators
+from tempest.lib import exceptions
+
+from vmware_nsx_tempest_plugin.lib import feature_manager
+CONF = config.CONF
+
+
+class IPv6RoutersTest(feature_manager.FeatureManager):
+    """Test the following operations for ports:
+        port create
+        port delete
+        port list
+        port show
+        port update
+    """
+
+    @classmethod
+    def skip_checks(cls):
+        super(IPv6RoutersTest, cls).skip_checks()
+        if not (CONF.network_feature_enabled.ipv6 and
+                CONF.network_feature_enabled.ipv6_subnet_attributes):
+            raise cls.skipException('IPv6 or its attributes not supported')
+        if not (CONF.network.project_networks_reachable or
+                CONF.network.public_network_id):
+            msg = ('Either project_networks_reachable must be "true", or '
+                   'public_network_id must be defined.')
+            raise cls.skipException(msg)
+
+    @classmethod
+    def setup_clients(cls):
+        super(IPv6RoutersTest, cls).setup_clients()
+        cls.cmgr_adm = cls.get_client_manager('admin')
+
+    @classmethod
+    def resource_setup(cls):
+        super(IPv6RoutersTest, cls).resource_setup()
+
+    def _create_ipv6_subnet(self, network, slaac=False):
+        subnet_client = self.cmgr_adm.subnets_client
+        subnet_name = network['name'] + 'sub'
+        address_cidr = CONF.network.project_network_v6_cidr
+        address_prefixlen = CONF.network.project_network_v6_mask_bits
+        if ((address_prefixlen >= 126)):
+            msg = ("Subnet %s isn't large enough for the test" % address_cidr)
+            raise exceptions.InvalidConfiguration(msg)
+        allocation_pools = {'allocation_pools': [{
+                            'start': str(address_cidr).split('/')[0] + '2',
+                            'end':str(address_cidr).split('/')[0] + '70'}]}
+        if slaac:
+            subnet = self.create_topology_subnet(subnet_name, network,
+                subnets_client=subnet_client,
+                ip_version=6, ipv6_ra_mode='slaac',
+                ipv6_address_mode='slaac',
+                **allocation_pools)
+        else:
+            subnet = self.create_topology_subnet(subnet_name, network,
+                subnets_client=subnet_client,
+                ip_version=6, enable_dhcp=False,
+                **allocation_pools)
+        return subnet
+
+    @decorators.attr(type=['nsxv3', 'positive'])
+    @decorators.idempotent_id('6526db57-c523-4879-b8ae-f50f0190f960')
+    def test_single_ipv6_downlink_interface_rtr(self):
+        """Test creating single ipv6 static subnet attached
+           to router downlink interface
+        """
+        name = data_utils.rand_name("ipv6-net")
+        networks_client = self.cmgr_adm.networks_client
+        network = self.create_topology_network(name,
+            networks_client=networks_client)
+        subnet = self._create_ipv6_subnet(network)
+        rtr_name = data_utils.rand_name("ipv6-rtr")
+        router = self.create_topology_router(
+            rtr_name, routers_client=self.cmgr_adm.routers_client)
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet['id'])
+        self.assertEqual(subnet['id'], interface['subnet_id'])
+
+    @decorators.attr(type=['nsxv3', 'positive'])
+    @decorators.idempotent_id('6cbd1f61-8d63-4d81-a8ba-f0f0624d4585')
+    def test_ipv4_ipv6_downlink_interface_rtr(self):
+        """Test creating ipv4 and ipv6 static subnets attached
+           to router downlink interface
+        """
+        name = data_utils.rand_name("ipv6-net")
+        networks_client = self.cmgr_adm.networks_client
+        network = self.create_topology_network(name,
+            networks_client=networks_client)
+        subnet_client = self.cmgr_adm.subnets_client
+        subnet_name = network['name'] + 'ipv4-sub'
+        subnet_ipv4 = self.create_topology_subnet(subnet_name, network,
+            subnets_client=subnet_client,
+            cidr='20.20.0.0/16')
+        subnet = self._create_ipv6_subnet(network)
+        rtr_name = data_utils.rand_name("ipv6-rtr")
+        router = self.create_topology_router(
+            rtr_name, routers_client=self.cmgr_adm.routers_client)
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet_ipv4['id'])
+        self.assertEqual(subnet_ipv4['id'], interface['subnet_id'])
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet['id'])
+        self.assertEqual(subnet['id'], interface['subnet_id'])
+
+    @decorators.attr(type=['nsxv3', 'positive'])
+    @decorators.idempotent_id('6a228287-25d2-41b3-aa7d-f6e566b9c8a3')
+    def test_slaac_single_ipv6_downlink_interface_rtr(self):
+        """Test creating single ipv6 static subnet attached
+           to router downlink interface
+        """
+        name = data_utils.rand_name("ipv6-net")
+        networks_client = self.cmgr_adm.networks_client
+        network = self.create_topology_network(name,
+            networks_client=networks_client)
+        subnet = self._create_ipv6_subnet(network, slaac=True)
+        rtr_name = data_utils.rand_name("ipv6-rtr")
+        router = self.create_topology_router(
+            rtr_name, routers_client=self.cmgr_adm.routers_client)
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet['id'])
+        self.assertEqual(subnet['id'], interface['subnet_id'])
+
+    @decorators.attr(type=['nsxv3', 'positive'])
+    @decorators.idempotent_id('8e7b1e28-e50e-458e-beb4-49ce5663c561')
+    def test_slaac_ipv4_ipv6_downlink_interface_rtr(self):
+        """Test creating ipv4 and ipv6 slaac subnets attached
+           to router downlink interface
+        """
+        name = data_utils.rand_name("ipv6-net")
+        networks_client = self.cmgr_adm.networks_client
+        network = self.create_topology_network(name,
+            networks_client=networks_client)
+        subnet_client = self.cmgr_adm.subnets_client
+        subnet_name = network['name'] + 'ipv4-sub'
+        subnet_ipv4 = self.create_topology_subnet(subnet_name, network,
+            subnets_client=subnet_client,
+            cidr='20.20.0.0/16')
+        subnet = self._create_ipv6_subnet(network, slaac=True)
+        rtr_name = data_utils.rand_name("ipv6-rtr")
+        router = self.create_topology_router(
+            rtr_name, routers_client=self.cmgr_adm.routers_client)
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet_ipv4['id'])
+        self.assertEqual(subnet_ipv4['id'], interface['subnet_id'])
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet['id'])
+        self.assertEqual(subnet['id'], interface['subnet_id'])
+
+    @decorators.attr(type=['nsxv3', 'positive'])
+    @decorators.idempotent_id('85235d0f-89b5-48a0-a3ee-d1bd21be6b94')
+    def test_slaac_multiple_ipv6_downlink_interface_rtr(self):
+        """Test creating multiple ipv6 slaac subnets attached
+           to router downlink interface
+        """
+        name = data_utils.rand_name("ipv6-net")
+        networks_client = self.cmgr_adm.networks_client
+        network = self.create_topology_network(name,
+            networks_client=networks_client)
+        subnet = self._create_ipv6_subnet(network, slaac=True)
+        subnet_1 = self._create_ipv6_subnet(network, slaac=True)
+        rtr_name = data_utils.rand_name("ipv6-rtr")
+        router = self.create_topology_router(
+            rtr_name, routers_client=self.cmgr_adm.routers_client)
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet['id'])
+        self.assertEqual(subnet['id'], interface['subnet_id'])
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet_1['id'])
+        self.assertEqual(subnet_1['id'], interface['subnet_id'])
+
+    @decorators.attr(type=['nsxv3', 'positive'])
+    @decorators.idempotent_id('3564b971-6033-43cc-a13a-93b467bca50d')
+    def test_multiple_ipv6_downlink_interface_rtr(self):
+        """Test creating multiple ipv6 slaac subnets attached
+           to router downlink interface
+        """
+        name = data_utils.rand_name("ipv6-net")
+        networks_client = self.cmgr_adm.networks_client
+        network = self.create_topology_network(name,
+            networks_client=networks_client)
+        subnet = self._create_ipv6_subnet(network)
+        subnet_1 = self._create_ipv6_subnet(network)
+        rtr_name = data_utils.rand_name("ipv6-rtr")
+        router = self.create_topology_router(
+            rtr_name, routers_client=self.cmgr_adm.routers_client)
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet['id'])
+        self.assertEqual(subnet['id'], interface['subnet_id'])
+        interface = self.add_router_interface(
+            router_client=self.cmgr_adm.routers_client,
+            router_id=router['id'], subnet_id=subnet_1['id'])
+        self.assertEqual(subnet_1['id'], interface['subnet_id'])