RELAY DEVICE, RELAY METHOD, AND PROGRAM

• Main Authors: NISHIHARA KENTA, KATAOKA KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 10.07.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

To provide a relay device, a relay method, and a program, in which an expansion of a radio network is facilitated.SOLUTION: A relay device 1 comprises: an address extraction part 112 that extracts transmission source MAC address information on an ARP request frame received by a radio module 105A and stores the information in an extraction address storage part 131; an address conversion part 113 that converts the transmission source MAC address into a module MAC address in the ARP request frame, and converts transmission destination MAC address into the transmission source MAC address indicated by the transmission source MAC address stored by the extraction address storage part 131 in the ARP response frame; and a transmission control part 114 that performs control so that the ARP request frame after the conversion of the transmission source MAC address is transmitted from a radio module 105B to the other relay device 1, and the ARP response frame after the conversion of the transmission destination MAC address is transmitted from the radio module 105A to the other relay device 1.SELECTED DRAWING: Figure 3 【課題】無線ネットワークの拡張が容易になる中継装置、中継方法およびプログラムを提供する。【解決手段】中継装置１は、無線モジュール１０５Ａが受信したＡＲＰ要求フレームの送信元ＭＡＣアドレス情報を抽出して抽出アドレス記憶部１３１に記憶させるアドレス抽出部１１２と、ＡＲＰ要求フレームについて、送信元ＭＡＣアドレスをモジュールＭＡＣアドレスに変換するとともに、ＡＲＰ応答フレームについて、送信先ＭＡＣアドレスを抽出アドレス記憶部１３１が記憶する送信元ＭＡＣアドレス情報が示す送信元ＭＡＣアドレスに変換するアドレス変換部１１３と、送信元ＭＡＣアドレス変換後のＡＲＰ要求フレームを無線モジュール１０５Ｂから他の中継装置１へ送信させ、送信先ＭＡＣアドレス変換後のＡＲＰ応答フレームを無線モジュール１０５Ａから他の中継装置１へ送信させるよう制御する送信制御部１１４と、を備える。【選択図】図３