diff --git a/defaults/main.yml b/defaults/main.yml
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+---
+# netprep defaults/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+# Default netplan, which is empty
+# docs: https://netplan.io/reference/
+netprep_netplan: {}
+
+
+# Default nftables
+# docs: https://wiki.nftables.org/
+netprep_nftables: {}