diff --git a/neutron/agent/common/ovs_lib.py b/neutron/agent/common/ovs_lib.py
index 1aebb986314..f14c5877c6a 100644
--- a/neutron/agent/common/ovs_lib.py
+++ b/neutron/agent/common/ovs_lib.py
@@ -542,7 +542,7 @@ class OVSBridge(BaseOVS):
         if tunnel_type == TYPE_GRE_IP6:
             # NOTE(slaweq) According to the OVS documentation L3 GRE tunnels
             # over IPv6 are not supported.
-            options['packet_type'] = 'legacy'
+            options['packet_type'] = 'legacy_l2'
         attrs.append(('options', options))
 
         return self.add_port(port_name, *attrs)
diff --git a/neutron/tests/functional/agent/common/test_ovs_lib.py b/neutron/tests/functional/agent/common/test_ovs_lib.py
index e2248e2e12f..8573daa3ef9 100644
--- a/neutron/tests/functional/agent/common/test_ovs_lib.py
+++ b/neutron/tests/functional/agent/common/test_ovs_lib.py
@@ -480,4 +480,4 @@ class BaseOVSTestCase(base.BaseSudoTestCase):
                 ipv6_port_options = interface['options']
         self.assertEqual(p_const.TYPE_GRE, ipv4_port_type)
         self.assertEqual(ovs_lib.TYPE_GRE_IP6, ipv6_port_type)
-        self.assertEqual('legacy', ipv6_port_options.get('packet_type'))
+        self.assertEqual('legacy_l2', ipv6_port_options.get('packet_type'))
diff --git a/neutron/tests/functional/agent/test_ovs_lib.py b/neutron/tests/functional/agent/test_ovs_lib.py
index c3ea20d438d..10513531ba6 100644
--- a/neutron/tests/functional/agent/test_ovs_lib.py
+++ b/neutron/tests/functional/agent/test_ovs_lib.py
@@ -234,6 +234,7 @@ class OVSBridgeTestCase(OVSBridgeTestBase):
         attrs = {
             'remote_ip': '2001:db8:200::1',
             'local_ip': '2001:db8:100::1',
+            'packet_type': 'legacy_l2',
         }
         self._test_add_tunnel_port(
             attrs, expected_tunnel_type=ovs_lib.TYPE_GRE_IP6)