INTERNETWORK DEVICE, AND METHOD FOR PERFORMING MUTUAL CONVERSION BETWEEN LOCAL ADDRESS AND COMMUNICATION PORT NUMBER IN THE LOCAL ADDRESS TO BE USED TOGETHER WITH EACH LOCAL ADDRESS AND GLOBAL ADDRESS AND COMMUNICATION PORT NUMBER IN THE GLOBAL ADDRESS TO BE USED TOGETHER WITH EACH GLOBAL ADDRESS

摘要

PROBLEM TO BE SOLVED: To provide a technique with which an accessing frequency to an address/port conversion table is reduced in an internetwork device which converts a local address and a global address.;SOLUTION: An internetwork device is equipped with: a conversion table storage unit storing therein an address/port conversion table; and an address conversion processing unit for performing mutual conversion between a local address in a packet to be transmitted/received in communication between a plurality of networks and a communication port number in the local address, and a global address and a communication port number in the global address, on the basis of the address/port conversion table. The conversion table storage unit stores local addresses and global addresses, on the address/port conversion table, while arranging them side by side for each address group. In the address group, the local addresses and the global addresses are linearly disposed in a memory space, respectively.;COPYRIGHT: (C)2011,JPO&INPIT