Network: define the interface for IP protocol

Change-Id: I3a2014fb8bbee4d221a3174698209ecf6cd30df9
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/xyz/openbmc_project/Network/IPProtocol.interface.yaml b/xyz/openbmc_project/Network/IPProtocol.interface.yaml
new file mode 100644
index 0000000..c4f89ab
--- /dev/null
+++ b/xyz/openbmc_project/Network/IPProtocol.interface.yaml
@@ -0,0 +1,15 @@
+description: >
+    This defines IP protocol types.
+properties:
+    - name: Type
+      type: enum[self.Protocol]
+      description: >
+          protocol type can be IPv4 or IPv6 etc.
+
+enumerations:
+    - name: Protocol
+      description: >
+          Possible IP protocol types.
+      values:
+        - name: IPv4
+        - name: IPv6