Sure, but in the age of IoT, you probably shouldn't consider your local network safe :). If your IoT lightbulb, toaster or television has UPnP-ed itself and be

Sure, but in the age of IoT, you probably shouldn't consider your local network safe :). If your IoT lightbulb, toaster or television has UPnP-ed itself and been compromised, it may be quietly nmapping away to discover other easily exploitable widgets.