diff --git a/library/network_connections.py b/library/network_connections.py
index 9c7e8c3..2e0b4a7 100755
--- a/library/network_connections.py
+++ b/library/network_connections.py
@@ -580,7 +580,7 @@ class ArgValidator_DictIP(ArgValidatorDict):
                 ArgValidatorBool('dhcp4_send_hostname', default_value = None),
                 ArgValidatorIP  ('gateway4', family = socket.AF_INET),
                 ArgValidatorInt ('route_metric4', val_min = -1, val_max = 0xFFFFFFFF, default_value = None),
-                ArgValidatorBool('auto6'),
+                ArgValidatorBool('auto6', default_value = None),
                 ArgValidatorIP  ('gateway6', family = socket.AF_INET6),
                 ArgValidatorInt ('route_metric6', val_min = -1, val_max = 0xFFFFFFFF, default_value = None),
                 ArgValidatorList('address',
diff --git a/library/test_network_connections.py b/library/test_network_connections.py
index c1559c3..5156fb9 100755
--- a/library/test_network_connections.py
+++ b/library/test_network_connections.py
@@ -304,7 +304,7 @@ class TestValidator(unittest.TestCase):
                         'gateway6': None,
                         'gateway4': None,
                         'route_metric4': None,
-                        'auto6': False,
+                        'auto6': True,
                         'dhcp4': True,
                         'address': [],
                         'dns': [],
@@ -345,7 +345,7 @@ class TestValidator(unittest.TestCase):
                         'gateway6': None,
                         'gateway4': None,
                         'route_metric4': None,
-                        'auto6': False,
+                        'auto6': True,
                         'dhcp4': True,
                         'address': [],
                         'dns': [],