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Method and corresponding device for message forwarding

A forwarding device and message forwarding technology, applied in the network field, can solve the problems of network architecture development and application limitations, and the lack of NAT function, and achieve the effect of being conducive to development and wide application.

Active Publication Date: 2016-03-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] During the research process, the inventor found that the NAT function was not implemented in the network architecture with separation of control and forwarding, which limited the development and application of the network architecture with separation of control and forwarding

Method used

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  • Method and corresponding device for message forwarding
  • Method and corresponding device for message forwarding
  • Method and corresponding device for message forwarding

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Embodiment Construction

[0063] 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 described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. 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.

[0064] see figure 2 The embodiment of the present invention provides a method for message forwarding, the method is applicable to a network where control and forwarding are separated, and the network includes a forwarding device and a control device, and the method includes the following contents.

[0065] 201. The forwarding device receives a first IP packet sent fro...

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Abstract

An embodiment of the present invention provides a method for packet forwarding, the method comprising: a forwarding device receives a first IP packet sent from a first user equipment; if a first flow matching the first IP packet is found, table, and judge that the first IP packet needs to be forwarded to the control device according to the first flow table, and forward the first IP packet to the control device, so that the control device can performing NAT processing on an IP message to generate a second IP message; receiving the second IP message sent by the control device, and forwarding the second IP message. The embodiment of the present invention also provides a forwarding device and a control device. Through the technical solution provided by the embodiment of the present invention, a NAT processing function can be realized in a network separated from control and forwarding.

Description

technical field [0001] The invention relates to the network field, in particular to a method and corresponding equipment for message forwarding. Background technique [0002] With the development of the network, the number of computers connected to the Internet is increasing rapidly, and the fourth version of the Internet Protocol (Internet Protocol version 4, IPv4) address resources are also becoming less and less. Obviously, such a small number of IPv4 addresses cannot meet the needs of network users at all, so Network Address Translation (NAT) technology has also emerged. [0003] With the help of NAT, when the "internal" network of the private address sends data packets through the router, the private address is converted into the IPv4 address of the public network, and a local area network only needs to use a small number of IPv4 addresses to realize the communication between all computers in the private address network and the Internet need. [0004] NAT will automat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L29/12H04L45/74
CPCH04L61/25
Inventor 李凤凯刘恩慧林程勇丁万夫
Owner HUAWEI TECH CO LTD