Data forwarding method based on asymmetric routing under railway PSCADA network

Data forwarding method based on asymmetric routing under railway PSCADA network

The invention discloses a data forwarding method based on asymmetric routing under a railway PSCADA network, which comprises the following steps that: a dispatching station accesses an IP (Internet Protocol) network port corresponding to a router in a management machine through one channel and the r...

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Hauptverfasser: BAI RUGUO, LI SHIQIU
Format: Patent
Sprache:chi ; eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator BAI RUGUO
LI SHIQIU
description The invention discloses a data forwarding method based on asymmetric routing under a railway PSCADA network, which comprises the following steps that: a dispatching station accesses an IP (Internet Protocol) network port corresponding to a router in a management machine through one channel and the router corresponding to the channel, and after data reaches a protocol stack of an operating system of the management machine, the data is forwarded to the IP network port corresponding to the router; a protocol stack of a management machine system captures a dispatching station message through an IpFilterHook () hook function, analyzes, records and stores a destination address of the message, then queries a routing table, finds out an IP network port corresponding to the destination address, and finally sends a reply message through the IP network port and then forwards the reply message to a dispatching station through another channel of a router corresponding to the IP network port. The method not only can effect
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Data forwarding method based on asymmetric routing under railway PSCADA network
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