Method for allocating ports by address translation device and address translation device

A technology of address conversion and device allocation, applied in the direction of electrical components, transmission systems, etc., can solve the problems of application impact, users can not continue to use network applications, etc., and achieve the effect of improving application experience

Active Publication Date: 2018-06-15
CHINA TELECOM CORP LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

This method assigns a fixed port block to the user, and randomly assigns a port from the port block when the user accesses the Internet. This method does not require the address translation device to report the address mapping relationship to the traceability system in real time, but if the port block allocated to the user After all the port resources are allocated, the user will not be able to continue to use the network application, and some important applications of the user will be affected

Method used

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  • Method for allocating ports by address translation device and address translation device
  • Method for allocating ports by address translation device and address translation device
  • Method for allocating ports by address translation device and address translation device

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Embodiment Construction

[0023] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] figure 1 A flowchart of an embodiment of the method for allocating ports to the address translation device according to the present invention; as figure 1 Shown:

[0025] In step 102, the NAT device allocates a public IP address and a port block for the private IP address used by t...

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Abstract

The invention discloses a method for allocating ports by an address conversion device and the address conversion device, which allocates a public IP address and a port block for a private IP address used by a user application, and sets an important application-specific port block in the port block; when the user application belongs to For important applications, the NAT device obtains ports from the important application-specific port block when converting private IP addresses. The port allocation method and address translation equipment disclosed in the present invention perform differentiated allocation of ports according to the types of user applications. After the ports in the user's port block are allocated, the user's subsequent important applications can still obtain port resources. It does not affect the user's application experience, thereby improving the user's application experience.

Description

technical field [0001] The invention relates to the technical field of network address translation, in particular to a method for allocating ports by an address translation device and the address translation device. Background technique [0002] The public IPv4 addresses of IANA (The Internet Assigned Numbers Authority: Internet Number Assignment Agency) have been allocated, and the transition to the IPv6-based next-generation Internet is a long-term process. During the transition period, private network IPv4 addresses will inevitably be introduced, so it is necessary to There is an address translation NAT device deployed in the network. NAT (NetworkAddressTranslation) is a wide area network (WAN) access technology. It is a conversion technology that converts private (reserved) addresses into legal IP addresses. It is widely used in various types of Internet access methods and various types of networks. . NAT not only solves the problem of insufficient 1P addresses, but al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 郭泓伟杨国良邹易风伍佑明李忠超张国贤王洁郭东张晓宇王吉顺徐良红
Owner CHINA TELECOM CORP LTD
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