diff --git a/neutron/agent/linux/interface.py b/neutron/agent/linux/interface.py
index c763b03a30..24d7c2c448 100644
--- a/neutron/agent/linux/interface.py
+++ b/neutron/agent/linux/interface.py
@@ -90,6 +90,10 @@ class LinuxInterfaceDriver(object):
         for ip_cidr in ip_cidrs:
 
             net = netaddr.IPNetwork(ip_cidr)
+            # Convert to compact IPv6 address because the return values of
+            # "ip addr list" are compact.
+            if net.version == 6:
+                ip_cidr = str(net)
             if ip_cidr in previous:
                 del previous[ip_cidr]
                 continue
diff --git a/neutron/tests/unit/test_linux_interface.py b/neutron/tests/unit/test_linux_interface.py
index 43ebd093a3..0ea878a94f 100644
--- a/neutron/tests/unit/test_linux_interface.py
+++ b/neutron/tests/unit/test_linux_interface.py
@@ -109,6 +109,46 @@ class TestABCDriver(TestBase):
              mock.call().addr.add(4, '192.168.1.2/24', '192.168.1.255')])
         self.assertFalse(self.ip_dev().addr.delete.called)
 
+    def test_l3_init_with_ipv6(self):
+        addresses = [dict(ip_version=6,
+                          scope='global',
+                          dynamic=False,
+                          cidr='2001:db8:a::123/64')]
+        self.ip_dev().addr.list = mock.Mock(return_value=addresses)
+        bc = BaseChild(self.conf)
+        ns = '12345678-1234-5678-90ab-ba0987654321'
+        bc.init_l3('tap0', ['2001:db8:a::124/64'], namespace=ns)
+        self.ip_dev.assert_has_calls(
+            [mock.call('tap0', 'sudo', namespace=ns),
+             mock.call().addr.list(scope='global', filters=['permanent']),
+             mock.call().addr.add(6, '2001:db8:a::124/64',
+                                  '2001:db8:a:0:ffff:ffff:ffff:ffff'),
+             mock.call().addr.delete(6, '2001:db8:a::123/64')])
+
+    def test_l3_init_with_duplicated_ipv6(self):
+        addresses = [dict(ip_version=6,
+                          scope='global',
+                          dynamic=False,
+                          cidr='2001:db8:a::123/64')]
+        self.ip_dev().addr.list = mock.Mock(return_value=addresses)
+        bc = BaseChild(self.conf)
+        ns = '12345678-1234-5678-90ab-ba0987654321'
+        bc.init_l3('tap0', ['2001:db8:a::123/64'], namespace=ns)
+        self.assertFalse(self.ip_dev().addr.add.called)
+
+    def test_l3_init_with_duplicated_ipv6_uncompact(self):
+        addresses = [dict(ip_version=6,
+                          scope='global',
+                          dynamic=False,
+                          cidr='2001:db8:a::123/64')]
+        self.ip_dev().addr.list = mock.Mock(return_value=addresses)
+        bc = BaseChild(self.conf)
+        ns = '12345678-1234-5678-90ab-ba0987654321'
+        bc.init_l3('tap0',
+                   ['2001:db8:a:0000:0000:0000:0000:0123/64'],
+                   namespace=ns)
+        self.assertFalse(self.ip_dev().addr.add.called)
+
 
 class TestOVSInterfaceDriver(TestBase):