std::uint16_t port = 15001;

boost::asio::io_context io_context;

boost::asio::ip::udp::endpoint receiver(boost::asio::ip::udp::v4(), port);

boost::asio::ip::udp::socket socket(io_context, receiver);

while (true) {

char buffer[65536];

boost::asio::ip::udp::endpoint sender;

std::size_t bytes_transferred =

socket.receive_from(boost::asio::buffer(buffer), sender);

socket.send_to(boost::asio::buffer(buffer, bytes_transferred), sender);

}

return 0;

}