Boost.Asio C++ Network Programming Cookbook

Binding a socket to an endpoint

Before an active socket can communicate with a remote application or a passive socket can accept incoming connection requests, they must be associated with a particular local IP address (or multiple addresses) and a protocol port number, that is, an endpoint. The process of associating a socket with a particular endpoint is called binding. When a socket is bound to an endpoint, all network packets coming into the host from the network with that endpoint as their target address will be redirected to that particular socket by the operating system. Likewise, all the data coming out from a socket bound to a particular endpoint will be output from the host to the network through a network interface associated with the ...