[req-changes] Updated WireGuard MTU

docs/source/backends/wireguard.rst

@@ -104,7 +104,7 @@ key name        type    default   allowed values
 ``port``        integer ``51820`` integers
 ``private_key`` string            base64-encoded private key
 ``dns``         list    ``[]``    list of strings containing DNS servers
-``mtu``         integer ``1280``  MTU set on the interface
+``mtu``         integer ``1420``  Interface MTU, set to 1280 if using IPv6
 ``table``       string  ``auto``  Controls the routing table to which routes are
                                   added
 ``pre_up``      string            Script snippet which will be executed before

netjsonconfig/backends/wireguard/schema.py

@@ -59,7 +59,8 @@
                         "title": "MTU",
                         "minimum": 68,
                         "propertyOrder": 5,
-                        "default": 1280,
+                        "default": 1420,
+                        "description": ("Interface MTU, set to 1280 if using IPv6."),
                     },
                     "table": {
                         "title": "Table",