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A method for preventing the address parsing cheating

A technology of address resolution and IP address, which is applied in the field of preventing address resolution spoofing. It can solve problems such as data packet decryption, difficulty in configuration, and adverse effects of LAN switches, and achieve the effects of enhancing security, simple deployment, and preventing ARP spoofing

Inactive Publication Date: 2007-08-01
SIEMENS CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] At present, data can also be encrypted through the Internet Protocol security (IPsec: Internet Protocol security), that is, the attacker computer deceives the switch and obtains the data packet sent to the original host, but still cannot decrypt the data packet, so that the data packet cannot be obtained Content
However, because IPsec is usually used in virtual private networks (VPNs), and the application of IPsec has also caused adverse effects on the work of LAN switches, it is usually difficult to configure

Method used

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  • A method for preventing the address parsing cheating
  • A method for preventing the address parsing cheating
  • A method for preventing the address parsing cheating

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Experimental program
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Embodiment Construction

[0062] Hereinafter, the present invention will be described in detail in conjunction with the accompanying drawings.

[0063] A status bit is added to the address resolution cache table of the local host, and existing means can be used for adding the status bit.

[0064] Fig. 3 is a flow chart of sending data packets in the present invention. When the local host needs to send data packets to the remote host, the following steps are started to prevent ARP spoofing. Step B01, check whether there is a record entry in the local host address resolution cache table that is the same as the IP address of the received remote host ARP message, if so, go to step B02, otherwise go to step B09. Step B02, judging the state of the entry, if it is an alarm state, go to step B03, if it is valid, go to step B04, if it is outdated, go to step B05, if it is a detection state, go to step B06. Step B03, discarding the data packet to be sent. Step B04, sending data packets normally. Step B05, se...

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Abstract

The related method resistant to address analysis cheat for network communication security comprises: adding a state bit into the item of local host ARP buffer table, receiving remote ARP message, modifying the corresponding state bit in local host ARP table, and processing the message according to said state bit. This invention just needs a little of network source to improve computer security conveniently.

Description

technical field [0001] The invention relates to the field of network communication, in particular to the field of network communication security, and specifically relates to a method for preventing address resolution deception. Background technique [0002] With the continuous deepening of national information construction, especially the industrial policy of "informatization to promote industrialization" formulated by the state, as well as the expansion of domestic demand, the increase of infrastructure construction, the implementation of the western development strategy and the introduction of related policies, the domestic computer And the network communication market has achieved sustained, healthy and rapid development. [0003] The rapid development of the network has promoted the rapid advancement of social informatization, and informatization projects such as telecommunications, electric power, e-government, and e-commerce are also in full swing. However, with the g...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56
Inventor 周雷
Owner SIEMENS CHINA
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