How to change the port of a running Boost::ASIO udp socket

Question

The Boost ASIO library provides a port() get/set method for a socket local_endpoint , but when I try to switch to a different port while the work queue is running, calling socket.local_endpoint().port(1234) call does not change the port. Does anyone have experience with this?

Based on an option received over TFTP, I need to switch the port over which the server and client are communicating.

Answer 1

To answer why

socket.local_endpoint().port(1234) call does not change the port.

as far as I know, the basic_socket class *_endpoint() implementations return a copy of endpoint_type object, not a reference, so the change you are trying to make, won't affect the socket object.