diff --git a/neutron/agent/linux/ip_lib.py b/neutron/agent/linux/ip_lib.py
index aa44b1e299..297c566f8e 100644
--- a/neutron/agent/linux/ip_lib.py
+++ b/neutron/agent/linux/ip_lib.py
@@ -393,9 +393,8 @@ class IpRouteCommand(IpDeviceCommandBase):
             gateway_index = 2
             parts = default_route_line.split()
             retval = dict(gateway=parts[gateway_index])
-            metric_index = 4
-            parts_has_metric = (len(parts) > metric_index)
-            if parts_has_metric:
+            if 'metric' in parts:
+                metric_index = parts.index('metric') + 1
                 retval.update(metric=int(parts[metric_index]))
 
         return retval
diff --git a/neutron/tests/unit/test_linux_ip_lib.py b/neutron/tests/unit/test_linux_ip_lib.py
index 7ae10670bf..499153c3a3 100644
--- a/neutron/tests/unit/test_linux_ip_lib.py
+++ b/neutron/tests/unit/test_linux_ip_lib.py
@@ -127,6 +127,14 @@ GATEWAY_SAMPLE4 = ("""
 default via 10.35.19.254
 """)
 
+GATEWAY_SAMPLE5 = ("""
+default via 192.168.99.1 proto static
+""")
+
+GATEWAY_SAMPLE6 = ("""
+default via 192.168.99.1 proto static metric 100
+""")
+
 DEVICE_ROUTE_SAMPLE = ("10.0.0.0/24  scope link  src 10.0.0.2")
 
 SUBNET_SAMPLE1 = ("10.0.0.0/24 dev qr-23380d11-d2  scope link  src 10.0.0.1\n"
@@ -647,7 +655,12 @@ class TestIpRouteCommand(TestIPCmdBase):
                       {'sample': GATEWAY_SAMPLE3,
                        'expected': None},
                       {'sample': GATEWAY_SAMPLE4,
-                       'expected': {'gateway': '10.35.19.254'}}]
+                       'expected': {'gateway': '10.35.19.254'}},
+                      {'sample': GATEWAY_SAMPLE5,
+                       'expected': {'gateway': '192.168.99.1'}},
+                      {'sample': GATEWAY_SAMPLE6,
+                       'expected': {'gateway': '192.168.99.1',
+                                    'metric': 100}}]
         for test_case in test_cases:
             self.parent._run = mock.Mock(return_value=test_case['sample'])
             self.assertEqual(self.route_cmd.get_gateway(),