diff --git a/openstackclient/common/quota.py b/openstackclient/common/quota.py
index 8ae6f7d48..aabfa5d54 100644
--- a/openstackclient/common/quota.py
+++ b/openstackclient/common/quota.py
@@ -247,11 +247,16 @@ class ShowQuota(command.ShowOne):
         return quota._info
 
     def get_network_quota(self, parsed_args):
-        if parsed_args.quota_class or parsed_args.default:
+        if parsed_args.quota_class:
             return {}
         if self.app.client_manager.is_network_endpoint_enabled():
             project = self._get_project(parsed_args)
-            return self.app.client_manager.network.get_quota(project)
+            client = self.app.client_manager.network
+            if parsed_args.default:
+                network_quota = client.get_quota_default(project)
+            else:
+                network_quota = client.get_quota(project)
+            return network_quota
         else:
             return {}
 
diff --git a/openstackclient/tests/functional/common/test_quota.py b/openstackclient/tests/functional/common/test_quota.py
index fd45be38a..9687cdb0d 100644
--- a/openstackclient/tests/functional/common/test_quota.py
+++ b/openstackclient/tests/functional/common/test_quota.py
@@ -17,6 +17,7 @@ class QuotaTests(base.TestCase):
     """Functional tests for quota. """
     # Test quota information for compute, network and volume.
     EXPECTED_FIELDS = ['instances', 'networks', 'volumes']
+    EXPECTED_CLASS_FIELDS = ['instances', 'volumes']
     PROJECT_NAME = None
 
     @classmethod
@@ -40,3 +41,13 @@ class QuotaTests(base.TestCase):
         raw_output = self.openstack('quota show')
         for expected_field in self.EXPECTED_FIELDS:
             self.assertIn(expected_field, raw_output)
+
+    def test_quota_show_with_default_option(self):
+        raw_output = self.openstack('quota show --default')
+        for expected_field in self.EXPECTED_FIELDS:
+            self.assertIn(expected_field, raw_output)
+
+    def test_quota_show_with_class_option(self):
+        raw_output = self.openstack('quota show --class')
+        for expected_field in self.EXPECTED_CLASS_FIELDS:
+            self.assertIn(expected_field, raw_output)
diff --git a/openstackclient/tests/unit/common/test_quota.py b/openstackclient/tests/unit/common/test_quota.py
index cbe4cb80e..ac03cb604 100644
--- a/openstackclient/tests/unit/common/test_quota.py
+++ b/openstackclient/tests/unit/common/test_quota.py
@@ -383,6 +383,8 @@ class TestQuotaShow(TestQuota):
         )
         self.network = self.app.client_manager.network
         self.network.get_quota = mock.Mock(return_value=network_fakes.QUOTA)
+        self.network.get_quota_default = mock.Mock(
+            return_value=network_fakes.QUOTA)
 
         self.cmd = quota.ShowQuota(self.app, None)
 
@@ -403,6 +405,7 @@ class TestQuotaShow(TestQuota):
             identity_fakes.project_id)
         self.network.get_quota.assert_called_once_with(
             identity_fakes.project_id)
+        self.assertNotCalled(self.network.get_quota_default)
 
     def test_quota_show_with_default(self):
         arglist = [
@@ -422,6 +425,9 @@ class TestQuotaShow(TestQuota):
             identity_fakes.project_id)
         self.volume_quotas_mock.defaults.assert_called_once_with(
             identity_fakes.project_id)
+        self.network.get_quota_default.assert_called_once_with(
+            identity_fakes.project_id)
+        self.assertNotCalled(self.network.get_quota)
 
     def test_quota_show_with_class(self):
         arglist = [
@@ -441,6 +447,8 @@ class TestQuotaShow(TestQuota):
             identity_fakes.project_id)
         self.volume_quotas_class_mock.get.assert_called_once_with(
             identity_fakes.project_id)
+        self.assertNotCalled(self.network.get_quota)
+        self.assertNotCalled(self.network.get_quota_default)
 
     def test_quota_show_no_project(self):
         parsed_args = self.check_parser(self.cmd, [], [])
@@ -452,3 +460,4 @@ class TestQuotaShow(TestQuota):
             identity_fakes.project_id)
         self.network.get_quota.assert_called_once_with(
             identity_fakes.project_id)
+        self.assertNotCalled(self.network.get_quota_default)
diff --git a/releasenotes/notes/bug-1204956-af47c7f34ecc19c3.yaml b/releasenotes/notes/bug-1204956-af47c7f34ecc19c3.yaml
new file mode 100644
index 000000000..65def078b
--- /dev/null
+++ b/releasenotes/notes/bug-1204956-af47c7f34ecc19c3.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - Supported to fetch network project default quota with command
+    ``quota show --default``.
+    [Bug `1204956 <https://bugs.launchpad.net/neutron/+bug/1204956>`_]