TP-Link loves to make things proprietary. They have a custom protocol called the Tether Management Protocol, the weird OneMesh stuff noted here, custom firmware

TP-Link loves to make things proprietary. They have a custom protocol called the Tether Management Protocol, the weird OneMesh stuff noted here, custom firmware headers and signing, etc. all without proper documentation. Many major vulns in TP-Link devices have been a result of these protocols, save for a few prolific things such as FragAttack. But hey, I guess it gives people something to hack on.