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Port allocation method and network address translation device

A distribution method and port technology, applied in the direction of electrical components, transmission systems, etc., can solve the problems of unguaranteed service quality and affecting user experience

Active Publication Date: 2017-09-15
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) There is a problem that the port is used up when the user allocates ports or allocates fixed-size port blocks, which affects the user experience
[0007] (2) There is no differentiation in the ports or port blocks allocated by users, which will lead to no guarantee of service quality

Method used

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  • Port allocation method and network address translation device
  • Port allocation method and network address translation device
  • Port allocation method and network address translation device

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Embodiment Construction

[0045] The present disclosure will be described below with reference to the accompanying drawings. It is to be noted that the following description is merely explanatory and exemplary in nature, and in no way serves as any limitation of the present disclosure, its application or uses. Relative arrangements of components and steps and numerical expressions and numerical values ​​set forth in the embodiments do not limit the scope of the present disclosure unless otherwise specifically stated. Additionally, techniques, methods and devices known to those skilled in the art may not be discussed in detail but are intended to be part of the description where appropriate.

[0046] The disclosure allocates port blocks of different sizes to users based on their service levels, and may also allocate ports in the reserved port block to users of the highest level when all port blocks allocated to users of the highest level are used. Users who are not at the highest level can only use the...

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Abstract

The present disclosure relates to a port allocation method and a network address conversion device. The method includes determining the service level of the user by checking the priority of the data packet sent by the user when the user initiates the application session for the first time, and extracting the private IPv4 address used by the user from the data packet sent by the user; From the public IPv4 address allocated to the user, the port block is allocated to the user in a differentiated manner, and the public IPv4 address and port block information allocated to the user are sent to the traceability system; a port is selected from the port block allocated to the user and allocated to the user-initiated Application session; establish a mapping relationship between private IPv4 address, public IPv4 address and port block for the user in the resource information table and record the usage of the port block allocated to the user. The present disclosure can provide different service qualities for users of different levels.

Description

technical field [0001] The present disclosure relates to the next generation Internet technology, and in particular, relates to a port allocation method and a network address translation device. Background technique [0002] With the gradual depletion of public IPv4 addresses, the application of private IPv4 addresses will become more and more extensive, and the deployment of network address translation equipment will become more and more common. When a user uses a private IPv4 address to access the Internet, the network address translation device usually allocates an address from the public IPv4 address pool, and then allocates a port to form a mapping relationship between the private IPv4 address and the public IPv4 address and port. Port allocation methods include per-session allocation and per-user allocation. [0003] When the address translation device performs address translation, if ports are allocated for each session and multiple users reuse a port block that can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 伍佑明李阳春黄灿灿邹洁谭景华
Owner CHINA TELECOM CORP LTD
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