Socket Binding Properties
A socket binding includes the following information: name -- logical name of the socket configuration that should be used elsewhere in the configuration port -- base port to which a socket based on this configuration should be bound. (Note that servers can be configured to override this base value by applying an increment or decrement to all port values. See below for more details.) interface (optional) -- logical name (see "Interfaces" above) of the interface to which a socket based on this configuration should be bound multicast-address (optional) -- if the socket will be used for multicast, the multicast address to use multicast-port (optional) -- if the socket will be used for multicast, the multicast port to use fixed-port (optional, defaults to false) -- if true, declares that the value of port should always be used for the socket and should not be overridden