LAN Gateway Device Application Method for an Internet via Satellite Telecommunication Network

摘要

The present invention relates to a satellite internet communication method, wherein a plurality of hosts assigned an IP address registered to a satellite internet service provider (ISP) in transmitting and receiving packet data using a satellite are provided through a LAN gateway equipped with satellite reception hardware. It is to be shared. In satellite Internet communication, the IP address and subnet mask of each host connected on the same LAN are registered in the subnet map table of the LAN gateway to perform IP analysis of all packets received from the satellite for the hosts connected on the LAN. It accepts only packets and transmits them to the corresponding host, and registers the IP address of each host connected to the same LAN in the subnet map table of the LAN gateway, and the destination IP address of all packets received from the satellite It is determined whether it is included in the IP address of the host registered in the net map table, and if the IP address of the received packet is included in the IP address of the registered host, after accepting the packet and executing a predetermined process, It characterized in that it comprises the step of transmitting to the host side. Therefore, there is no dependency on a protocol, and it is possible to receive satellite Internet service from a desired server by simple processing to a plurality of subscribers in a LAN network in the same LAN network, and an efficient service is provided without changing the host program.