[semidet]udp_broadcast_initialize(+IPAddress,
+SubnetMask)causes any required runtime initialization to occur. At present, proper
operation of UDP broadcast depends on local information that is not
easily obtained mechanically. In order to determine the appropriate UDP
broadcast address, you must supply the
IPAddress and SubnetMask for the node that is
running this module. These data are supplied in the form of ip/4
terms. This is now required to be included in an applications
intialization directive.