diff --git a/Authors b/Authors
index bcb258ea..af8b557d 100644
--- a/Authors
+++ b/Authors
@@ -13,6 +13,7 @@ Andrey Brindeyev <abrindeyev@griddynamics.com>
 Andy Smith <code@term.ie>
 Andy Southgate <andy.southgate@citrix.com>
 Anne Gentle <anne@openstack.org>
+Ante Karamatić <ivoks@ubuntu.com>
 Anthony Young <sleepsonthefloor@gmail.com>
 Antony Messerli <ant@openstack.org>
 Armando Migliaccio <Armando.Migliaccio@eu.citrix.com>
diff --git a/nova/tests/test_libvirt.py b/nova/tests/test_libvirt.py
index d8a44eec..7e861c04 100644
--- a/nova/tests/test_libvirt.py
+++ b/nova/tests/test_libvirt.py
@@ -36,6 +36,7 @@ from nova import utils
 from nova.api.ec2 import cloud
 from nova.compute import instance_types
 from nova.compute import power_state
+from nova.compute import utils as compute_utils
 from nova.compute import vm_states
 from nova.virt import images
 from nova.virt import driver
@@ -60,6 +61,7 @@ FLAGS = flags.FLAGS
 LOG = logging.getLogger(__name__)
 
 _fake_network_info = fake_network.fake_get_instance_nw_info
+_fake_stub_out_get_nw_info = fake_network.stub_out_nw_api_get_instance_nw_info
 _ipv4_like = fake_network.ipv4_like
 
 
@@ -1491,22 +1493,14 @@ class IptablesFirewallTestCase(test.TestCase):
                 return '', ''
             print cmd, kwargs
 
-        network_info = _fake_network_info(self.stubs, 1)
-
-        def get_fixed_ips(*args, **kwargs):
-            ips = []
-            for network, info in network_info:
-                ips.extend(info['ips'])
-                return [ip['ip'] for ip in ips]
-
-        def nw_info(*args, **kwargs):
-            return network_info
+        network_model = _fake_network_info(self.stubs, 1, spectacular=True)
 
         from nova.network import linux_net
         linux_net.iptables_manager.execute = fake_iptables_execute
 
-        fake_network.stub_out_nw_api_get_instance_nw_info(self.stubs,
-                                                          nw_info)
+        _fake_stub_out_get_nw_info(self.stubs, lambda *a, **kw: network_model)
+
+        network_info = compute_utils.legacy_network_info(network_model)
         self.fw.prepare_instance_filter(instance_ref, network_info)
         self.fw.apply_instance_filter(instance_ref, network_info)
 
@@ -1544,9 +1538,11 @@ class IptablesFirewallTestCase(test.TestCase):
         self.assertTrue(len(filter(regex.match, self.out_rules)) > 0,
                         "ICMP Echo Request acceptance rule wasn't added")
 
-        for ip in get_fixed_ips():
+        for ip in network_model.fixed_ips():
+            if ip['version'] != 4:
+                continue
             regex = re.compile('-A .* -j ACCEPT -p tcp -m multiport '
-                               '--dports 80:81 -s %s' % ip)
+                               '--dports 80:81 -s %s' % ip['address'])
             self.assertTrue(len(filter(regex.match, self.out_rules)) > 0,
                             "TCP port 80/81 acceptance rule wasn't added")
 
diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py
index e7357b02..d268634c 100644
--- a/nova/tests/test_xenapi.py
+++ b/nova/tests/test_xenapi.py
@@ -32,6 +32,7 @@ from nova import utils
 from nova.compute import aggregate_states
 from nova.compute import instance_types
 from nova.compute import power_state
+from nova.compute import utils as compute_utils
 from nova import exception
 from nova.virt import xenapi_conn
 from nova.virt.xenapi import fake as xenapi_fake
@@ -1527,27 +1528,23 @@ class XenAPIDom0IptablesFirewallTestCase(test.TestCase):
         instance_ref = db.instance_get(admin_ctxt, instance_ref['id'])
         src_instance_ref = db.instance_get(admin_ctxt, src_instance_ref['id'])
 
-        network_info = fake_network.fake_get_instance_nw_info(self.stubs, 1)
-
-        def get_fixed_ips(*args, **kwargs):
-            ips = []
-            for _n, info in network_info:
-                ips.extend(info['ips'])
-            return [ip['ip'] for ip in ips]
-
-        def nw_info(*args, **kwargs):
-            return network_info
+        network_model = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                      1, spectacular=True)
 
         fake_network.stub_out_nw_api_get_instance_nw_info(self.stubs,
-                                                          nw_info)
+                                      lambda *a, **kw: network_model)
+
+        network_info = compute_utils.legacy_network_info(network_model)
         self.fw.prepare_instance_filter(instance_ref, network_info)
         self.fw.apply_instance_filter(instance_ref, network_info)
 
         self._validate_security_group()
         # Extra test for TCP acceptance rules
-        for ip in get_fixed_ips():
+        for ip in network_model.fixed_ips():
+            if ip['version'] != 4:
+                continue
             regex = re.compile('-A .* -j ACCEPT -p tcp'
-                               ' --dport 80:81 -s %s' % ip)
+                               ' --dport 80:81 -s %s' % ip['address'])
             self.assertTrue(len(filter(regex.match, self._out_rules)) > 0,
                             "TCP port 80/81 acceptance rule wasn't added")