At this point 2, an entry in the table of communications has been reserved for the application. However, the socket has no port or IP address associated with it until the BIND call is issued. The BIND function requires three parameters:

• The socket descriptor that was just returned by the SOCKET call.
• The number of the port on which the server wants to provide its service
• The IP address of the network connection on which the server is listening. If the application wants to receive connection requests from any network interface, the IP address should be set to zeros.