Method for discovering transmission control protocol/Internet protocol (TCP/IP) network private access equipment

A network device and IP network technology, applied in the field of computer networks, can solve problems such as high management costs, cumbersome implementation process, and heavy workload

Active Publication Date: 2012-09-19
SHANGHAI BAOSIGHT SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main problems in this solution. One is that the workload is heavy, and it is necessary to bind the information of each port and MAC. In some large enterprises, it is basically inoperable through manual methods. Even if the binding is performed through some network management systems, this It's also quite a lot of work
The second is that there is no flexibility to speak of, and it cannot cope with regular network changes

Method used

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  • Method for discovering transmission control protocol/Internet protocol (TCP/IP) network private access equipment
  • Method for discovering transmission control protocol/Internet protocol (TCP/IP) network private access equipment
  • Method for discovering transmission control protocol/Internet protocol (TCP/IP) network private access equipment

Examples

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Example Embodiment

[0029] An embodiment of the TCP / IP network private connection device discovery method of the present invention is as follows: figure 1 shown, including the following steps:

[0030] 1. Set up a legal network device fingerprint database within a section of IP address range, and the legal network device fingerprint database records the MAC addresses of all legal network devices within the IP address range;

[0031] A specific method of setting up a legal network device fingerprint database in a section of IP address range is as follows:

[0032] (1) Use NMap to scan a network device within a specified IP address range in the TCP / IP network, and obtain the device operating system description information, device type information, MAC address, and TCP (Transmission Control Protocol transmission) information of the network device. control protocol) port status information;

[0033] (2) If the scanned network device has at least one TCP port status as open, and at least one TCP por...

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Abstract

The invention discloses a method for discovering transmission control protocol/Internet protocol (TCP/IP) network private access equipment. The method comprises the following steps of: establishing a legal network equipment fingerprint database within an IP address range, wherein the legal network equipment fingerprint database records media access control (MAC) addresses of all legal network equipment within the IP address range; acquiring the MAC forwarding table information of each piece of legal network equipment within the IP address range; and if the number of MAC addresses in MAC forwarding table information corresponding to a certain port of a piece of legal network equipment is more than or equal to 2, and each MAC address in the MAC forwarding table information corresponding to the port of the legal network equipment cannot be found from the legal network equipment fingerprint database, illegal network equipment accesses the port of the legal network equipment. According to the method for discovering the TCP/IP network private access equipment, network private access equipment in a TCP/IP network can be quickly discovered.

Description

technical field [0001] The invention relates to computer network technology, in particular to a method for discovering TCP / IP network private connection equipment. Background technique [0002] In an organization's TCP / IP (Transmission Control Protocol / Internet Protocol, transmission control protocol / Internet Internet Protocol, also known as network communication protocol) LAN, the management of general network equipment is relatively common, but privately connected to Hub, bridge , Unmanaged switches and other network devices emerge in endlessly. Especially in the access layer, this phenomenon is more serious, which brings a lot of troubles to the network management. Since the private connection of network devices will lead to the abuse of internal network resources, it is easier for the core information of enterprises and institutions to be stolen by illegally connected computers, resulting in serious consequences and damage to interests. Organizations usually formulate ...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/56H04L29/12H04L45/74
Inventor 贾大智蔡暮章
Owner SHANGHAI BAOSIGHT SOFTWARE CO LTD
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