I'm struggling at the moment with reversing the commands between a Wi-Fi Plug ( Amazon-Link for Wi-Fi Plug) and the associated phone app. It looks like the app controls the plug via a IPDC (IP device control) packet. This protocol seems to be used for VoIP and telephone networks. Did somebody ever came across this protocol on IoT Smart Home devices?
In the screenshot .28 is the phone and .78 is the Wi-Fi plug.