diff --git a/tempest/api/network/admin/test_routers.py b/tempest/api/network/admin/test_routers.py
index a4a057c..41f97d8 100644
--- a/tempest/api/network/admin/test_routers.py
+++ b/tempest/api/network/admin/test_routers.py
@@ -212,6 +212,42 @@
              'enable_snat': False})
         self._verify_gateway_port(router['id'])
 
+    @decorators.idempotent_id('cbe42f84-04c2-11e7-8adb-fa163e4fa634')
+    @utils.requires_ext(extension='ext-gw-mode', service='network')
+    def test_create_router_set_gateway_with_fixed_ip(self):
+        # At first create an external network and then use that
+        # to create address and delete
+        network_name = data_utils.rand_name(self.__class__.__name__)
+        network_1 = self.admin_networks_client.create_network(
+            name=network_name, **{'router:external': True})['network']
+        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
+                        self.admin_networks_client.delete_network,
+                        network_1['id'])
+        subnet = self.create_subnet(
+            network_1, client=self.admin_subnets_client, enable_dhcp=False)
+        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
+                        self.admin_subnets_client.delete_subnet, subnet['id'])
+        port = self.admin_ports_client.create_port(
+            name=data_utils.rand_name(self.__class__.__name__),
+            network_id=network_1['id'])['port']
+        self.admin_ports_client.delete_port(port_id=port['id'])
+        fixed_ip = {
+            'subnet_id': port['fixed_ips'][0]['subnet_id'],
+            'ip_address': port['fixed_ips'][0]['ip_address']
+        }
+        external_gateway_info = {
+            'network_id': network_1['id'],
+            'external_fixed_ips': [fixed_ip]
+        }
+        # Create a router and set gateway to fixed_ip
+        router = self.admin_routers_client.create_router(
+            external_gateway_info=external_gateway_info)['router']
+        self.admin_routers_client.delete_router(router['id'])
+        # Examine router's gateway is equal to fixed_ip
+        self.assertEqual(router['external_gateway_info'][
+                         'external_fixed_ips'][0]['ip_address'],
+                         fixed_ip['ip_address'])
+
 
 class RoutersIpV6AdminTest(RoutersAdminTest):
     _ip_version = 6
diff --git a/tempest/api/network/test_routers.py b/tempest/api/network/test_routers.py
index ad316d1..30423e3 100644
--- a/tempest/api/network/test_routers.py
+++ b/tempest/api/network/test_routers.py
@@ -142,39 +142,6 @@
         self.routers_client.remove_router_interface(
             router['id'], port_id=port_body['port']['id'])
 
-    @decorators.idempotent_id('cbe42f84-04c2-11e7-8adb-fa163e4fa634')
-    @utils.requires_ext(extension='ext-gw-mode', service='network')
-    @testtools.skipUnless(CONF.network.public_network_id,
-                          'The public_network_id option must be specified.')
-    @decorators.skip_because(bug='1676207')
-    def test_create_router_set_gateway_with_fixed_ip(self):
-        # Don't know public_network_address, so at first create address
-        # from public_network and delete
-        port = self.admin_ports_client.create_port(
-            name=data_utils.rand_name(self.__class__.__name__),
-            network_id=CONF.network.public_network_id)['port']
-        self.admin_ports_client.delete_port(port_id=port['id'])
-
-        fixed_ip = {
-            'subnet_id': port['fixed_ips'][0]['subnet_id'],
-            'ip_address': port['fixed_ips'][0]['ip_address']
-        }
-        external_gateway_info = {
-            'network_id': CONF.network.public_network_id,
-            'external_fixed_ips': [fixed_ip]
-        }
-
-        # Create a router and set gateway to fixed_ip
-        router = self.admin_routers_client.create_router(
-            external_gateway_info=external_gateway_info)['router']
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.admin_routers_client.delete_router,
-                        router_id=router['id'])
-        # Examine router's gateway is equal to fixed_ip
-        self.assertEqual(router['external_gateway_info'][
-                         'external_fixed_ips'][0]['ip_address'],
-                         fixed_ip['ip_address'])
-
     @decorators.idempotent_id('c86ac3a8-50bd-4b00-a6b8-62af84a0765c')
     @utils.requires_ext(extension='extraroute', service='network')
     def test_update_delete_extra_route(self):