Redirection method and device for real time monitoring network activities

Abstract

A re-direction method for detecting network activity at real time comprises the following steps: A. the active IP in a local area network is obtained by monitoring and analyzing the network activities and is recorded in a active IP address list; besides, a timed task confirms whether the IP, the survival time of which is reduced to zero, is really not active and delete the IP address which is no longer active from the IP address list; B. whether the to-be-transferred data packet satisfies the re-direction demands is judged and the to-be-transferred data packet is released or re-directed according to the query results. The device to realize the method comprises a network activity detecting module which is used for detecting and recording the active IP address and a re-direction module which is used for re-directing communication connection according to the real-time detection results of the network activity detecting module. The invention realizes the detection for the active IP address in the local area network by monitoring the network activities inside the local area network, so communication connection launched by external network to internal inactive IP address can be redirected instantly.

Description

Technical field [0001] The invention belongs to the technical field of computer network security, and relates to a method and device for redirecting network communication connections, in particular to a method for obtaining an active IP address by monitoring network activities, and redirecting a specific network communication connection to a designated receiving system And device. Background technique [0002] A local area network connected to an external internet network (hereinafter referred to as an external network) through a network connection device often occupies multiple local area network IP addresses (hereinafter referred to as IP addresses). Some of these IP addresses may be used by hosts in the local area network, and some may not be used. The host using these IP addresses may be currently running or may have been shut down. Usually the IP address used by the currently running host is called the active IP address, and the other IP addresses are collectively called the...

AI Technical Summary

Problems solved by technology

[0007] 4. No interference with data packets sent from the internal network

The problem with this method is: it cannot monitor which LAN IP addresses are active and which are inactive, and it cannot dynamically determine whether to redirect a communication connection according to the activity of the IP address

That is to say, in the prior art, there is no better method for monitoring the activity of the IP address of the LAN and redirecting the communication connection according to the activity in real time

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