Hello, boost::asio::ip::udp::socket offers two ways to open: a) pass io_service and endpoint to the socket::socket b) pass io_service to socket::socket, then call socket::open === The UDP async server example uses method (a): boost::asio::ip::udp::socket Socket( IoService, boost::asio::ip::udp::endpoint(boost::asio::ip::udp::v4(), 13)); === Question 1: Why doesn't boost UDP allow me to use method (b) with an endpoint? For example, this is impossible: boost::asio::ip::udp::socket Socket(IoService); Socket.open(boost::asio::ip::udp::endpoint(boost::asio::ip::udp::v4(), 13)); // error: open does not take a boost::asio::ip::udp::endpoint === Question 2: How can I modify the UDP async server example to use method (b)? Thank you, Chris