diff --git a/vmware_nsxlib/tests/unit/v3/policy/test_resources.py b/vmware_nsxlib/tests/unit/v3/policy/test_resources.py
index 98426fc3..2f1afef1 100644
--- a/vmware_nsxlib/tests/unit/v3/policy/test_resources.py
+++ b/vmware_nsxlib/tests/unit/v3/policy/test_resources.py
@@ -2637,12 +2637,14 @@ class TestPolicyTier1(NsxPolicyLibTestCase):
         segment_id = 'seg'
         ip_addr = '1.1.1.1'
         prefix_len = '24'
+        ndra_profile = 'slaac'
         subnet = core_defs.InterfaceSubnet([ip_addr], prefix_len)
         with mock.patch.object(self.policy_api,
                                "create_or_update") as api_call:
             self.resourceApi.add_segment_interface(
                 tier1_id, interface_id, segment_id,
                 subnets=[subnet],
+                ipv6_ndra_profile_id=ndra_profile,
                 tenant=TEST_TENANT)
 
             expected_def = core_defs.Tier1InterfaceDef(
@@ -2651,6 +2653,7 @@ class TestPolicyTier1(NsxPolicyLibTestCase):
                 interface_id=interface_id,
                 segment_id=segment_id,
                 subnets=[subnet],
+                ipv6_ndra_profile_id=ndra_profile,
                 tenant=TEST_TENANT)
 
             self.assert_called_with_def(api_call, expected_def)
diff --git a/vmware_nsxlib/v3/policy/core_defs.py b/vmware_nsxlib/v3/policy/core_defs.py
index e898b646..003609e7 100644
--- a/vmware_nsxlib/v3/policy/core_defs.py
+++ b/vmware_nsxlib/v3/policy/core_defs.py
@@ -476,6 +476,18 @@ class Tier1InterfaceDef(ResourceDef):
             self._set_attr_if_specified(body, 'segment_id',
                                         body_attr='segment_path',
                                         value=path)
+
+        if self.has_attr('ipv6_ndra_profile_id'):
+            paths = None
+            if self.get_attr('ipv6_ndra_profile_id'):
+                ndra_profile = Ipv6NdraProfileDef(
+                    profile_id=self.get_attr('ipv6_ndra_profile_id'),
+                    tenant=self.get_tenant())
+                paths = [ndra_profile.get_resource_full_path()]
+
+            self._set_attr_if_specified(body, 'ipv6_ndra_profile_id',
+                                        body_attr='ipv6_profile_paths',
+                                        value=paths)
         return body
 
     @property
diff --git a/vmware_nsxlib/v3/policy/core_resources.py b/vmware_nsxlib/v3/policy/core_resources.py
index 1c239acc..f619cc82 100644
--- a/vmware_nsxlib/v3/policy/core_resources.py
+++ b/vmware_nsxlib/v3/policy/core_resources.py
@@ -970,13 +970,15 @@ class NsxPolicyTier1Api(NsxPolicyResourceBase):
             return
 
     def add_segment_interface(self, tier1_id, interface_id, segment_id,
-                              subnets, tenant=constants.POLICY_INFRA_TENANT):
+                              subnets, ipv6_ndra_profile_id=IGNORE,
+                              tenant=constants.POLICY_INFRA_TENANT):
         t1interface_def = core_defs.Tier1InterfaceDef(
             tier1_id=tier1_id,
             service_id=self._locale_service_id(tier1_id),
             interface_id=interface_id,
             segment_id=segment_id,
             subnets=subnets,
+            ipv6_ndra_profile_id=ipv6_ndra_profile_id,
             tenant=tenant)
         self.policy_api.create_or_update(t1interface_def)