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Operator-level network address translation method and device

A network address translation, operator-level technology, applied in the field of operator-level network address translation methods and devices, can solve the problems of occupying public network addresses and low use efficiency of public network IPv4 addresses, and achieve the effect of improving use efficiency

Active Publication Date: 2020-05-08
XINYANG BRANCH HENAN CO LTD OF CHINA MOBILE COMM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] This method in the prior art will cause the centralized CGN equipment and distributed CGN equipment in the metropolitan area network to occupy different public network addresses A and B after NAT
In the current situation where public network IPv4 addresses are scarce, this method will cause the technical problem of low efficiency in the use of public network IPv4 addresses

Method used

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  • Operator-level network address translation method and device
  • Operator-level network address translation method and device
  • Operator-level network address translation method and device

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0022] figure 1 A schematic diagram of a carrier-level network address translation method provided by an embodiment of the present invention, as shown in figure 1 As shown, the embodiment of the present invention provides a carrier-level network address translation method, the execution body of which is a carrier-level network address tran...

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Abstract

The embodiment of the invention provides an operator-level network address translation method and device. The method comprises the steps of acquiring a running state of target distributed CGN equipment, if it is judged that the target distributed CGN device fails, switching the flow to a centralized CGN device, and sending a stop instruction to the target distributed CGN device. The embodiment ofthe invention provides the operator-level network address translation method and device. Through dynamic conditional release of the routing after the NAT of the distributed CGN equipment, the centralized CGN and the distributed CGN are ensured to use the same address space after the NAT, the service is not influenced when the main CGN equipment and the standby CGN equipment are switched, and the use efficiency of the IPv4 address is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a carrier-grade network address translation (Carrier-Grade Net Address Translation, CGN) method and device. Background technique [0002] Network Address Translation (Net Address Translation, NAT) is a conversion technology that converts a private Internet Protocol (Internet Protocol, IP) address into a public IP address. In the IP metropolitan area network, the large-scale use of NAT (Large Scale NAT, LSN), also known as NAT444, is an application scenario for the large-scale use of NAT technology in the operator network, so as to improve the efficiency of the use of existing IPv4 addresses and delay address exhausted. In this application scenario, the lower end of the CGN device is usually connected to the access router (Access Router, AR) or customer premise equipment (Customer Premise Equipment, CPE), and the upper end is connected to the co...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/25
Inventor 王永军
Owner XINYANG BRANCH HENAN CO LTD OF CHINA MOBILE COMM CORP
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