Node protection method, packet filtering device and virtual network system

A packet filtering and node technology, applied in the field of communication, can solve problems such as affecting the normal use of the network, hidden dangers, and inability to change the protection strategy in real time, to achieve effective node protection and avoid low security.

Active Publication Date: 2011-07-13
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect that this technology allows nodes on an internet protocol (IP) linkage group or other type of computer networking equipment to automatically adjust their own addresses based upon its current connections with others without overloading them with incorrect authorization codes. This helps prevent attacks from compromising networks' data integrity while still providing secure access through these systems.

Problems solved by technology

This patented technical problem addressed in the patents relates to protecting computer networks from being compromised due to exposure to external threats like viruses or attacks caused by malware. Current solutions involve manually setting up filters at fixed intervals over all possible connections between servers and clients. These techniques have limitations when trying to adapt quickly enough during emergency situations without causing harmful consequences.

Method used

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  • Node protection method, packet filtering device and virtual network system
  • Node protection method, packet filtering device and virtual network system
  • Node protection method, packet filtering device and virtual network system

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] figure 1 It is an architecture diagram of a virtual network applying the node protection method of the embodiment of the present invention. Such as figure 1 As shown, the virtual network includes a server (server), a plurality of client (client) nodes, and a packet filtering device corresponding to each client node for performing node protection. The packet filtering device can be independently set on the Before the client node, it can also be integrated with the client node to be protected.

[0023] The node protection method in the embodiment of the present invention is performed by the packet filtering device in the virtual network. The following uses the packet filtering device corresponding to the first node (any client n

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Abstract

The invention provides a node protection method, a packet filtering device and a virtual network system. The node protection method comprises the following steps: capturing a message transmitted to a first node by the packet filtering device of a first node, and carrying out security verification on the message according to a pre-stored authorized address list and the source address of the message; if the message passes the security verification is detected to be a connection request message, adding a second node address carried by the connection request message to the authorized address list so that a message from the second node address can pass the security verification, wherein the first node is a node requested by the connection request, and the second node is a request initiating node for initiating the connection request. The node protection method, the packet filtering device and the virtual network system are capable of providing effective and reliable protection for the nodes while guaranteeing the network performance.

Description

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Claims

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Application Information

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Owner CHENGDU HUAWEI TECH
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