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User identity authenticating and tracing method in address translation equipment

A technology for address translation equipment and user identity authentication, which is used in electrical components, transmission systems, etc.

Active Publication Date: 2013-10-16
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of user identity authentication and traceability of the shared public IPv4 address by establishing a unique mapping relationship between the shared public IPv4 address and the converted private IPv4 address

Method used

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  • User identity authenticating and tracing method in address translation equipment
  • User identity authenticating and tracing method in address translation equipment

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] An example is now used to illustrate the representation method of constructing the port multiplexing private IPv4 address 10.0.0.0 / 8 format in the address translation device according to the above method.

[0022] (1) Remainder representation method

[0023] According to the formula x=P%R, such as R=256, the port range that the computer with serial number 8 can use is n×256+x, that is, x, 256+x, 512+x, 768+x, 1024+x ,..., wherein the value range of n is 0-255 (65,536 / 256=256), and the value range of x is 0-255. Note that this port range applies to both destination and source ports. For the case of the target port, other IPv4 computers connect to the same public IPv4 target address, and requests for different target ports will be sent to different computers using the private IPv4 address 10.0.0.0 / 8 defined according to the above formula. For the source port, different computers using the same public IPv4 address must strictly abide by the port defined by the above form...

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Abstract

The invention relates to a user identity authenticating and tracing method in address translation equipment, belonging to the technical field of computer network communication. The user identity authenticating and tracing method is characterized in that the last 16 bits of a public IPv4 address with any premix length of less than 16 bits and a serial number (8 bits) of a target computer are simultaneously embedded into the last 24 bits of a private IPv4 address 10.0.0.0 / 8 in the address translation equipment which finishes the translation from the public IPv4 address to a plurality of IPv4 addresses; meanwhile, the port range used by each computer using the private IPv4 address 10.0.0.0 / 8 can be defined by using a remainder method to form a unique mapping of the public IPv4 address to the port multiplier private IPv4 address 10.0.0.0 / 8. By implementing the method on the address translation equipment, the problem of authenticating and tracking a user identity when the public IPv4 address is shared can be effectively solved, and the expandability, the safety and the manageability of a network can be ensured.

Description

technical field [0001] A method for user identity authentication and traceability in an address conversion device belongs to the technical field of computer Internet communication. Background technique [0002] The Internet has become the most important information infrastructure in the world, but the addressing range of IPv4, the fourth version of the network protocol widely used on the Internet, is only 2 32 , that is, 4.3 billion addresses. According to the current allocation speed of IPv4 addresses, it is estimated that after 2011, IPv4 addresses will be allocated soon. [0003] At present, the absolute number of Internet users in China has become the first in the world, but the penetration rate of the Internet is only 28%, which is far below the level of developed countries (70%). At the same time, each Chinese Internet user has only 0.6 IPv4 addresses on average. Therefore, for China, IPv4 addresses cannot meet the demand. This problem is very serious for other deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/06
Inventor 李星包丛笑
Owner TSINGHUA UNIV
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