METHOD AND SYSTEM FOR CENTRALLY ALLOCATING ADDRESSES AND PORT NUMBERS

摘要

An inside-realm node (A) attempting to connect to an outside-realm node (B) through an intermediate gateway ( 30 ) requests central configuration from a gateway resource manager ( 40 ). In response to the configuration request initiated from the inside-realm node, an outside-realm gateway address and an inside node port number are centrally allocated to the inside-realm node by resource allocation logic ( 42 ). Establishment of the connection is initiated at least partly based on the allocated address and port number by means of appropriate signaling with the gateway ( 30 ). The allocated address and port number are signaled back to the requesting inside-realm node in a configuration reply, allowing inside-realm node to configure its communication interface accordingly. The central allocation of socket parameters for the inside-realm node is preferably performed based on predetermined connection information, which is included in or derivable, for example by means of the name-to address translator ( 50 ), form the initial configuration request.