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NAT traversal method and server

A server and data packet technology, applied in the network field, can solve the problem of low adaptability of NAT traversal method

Inactive Publication Date: 2014-07-09
BEIJING FEINNO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem of low adaptability of the existing NAT traversal method, the embodiment of the present invention provides a NAT traversal method and server

Method used

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  • NAT traversal method and server
  • NAT traversal method and server

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Embodiment Construction

[0076] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0077] Please refer to figure 1 , which shows a flow chart of a NAT traversal method provided by an embodiment of the present invention. This embodiment is mainly described by taking the NAT traversal method applied to a TLS server located in a public network as an example. The NAT traversal methods include:

[0078] Step 101, the TLS server receives the first request information sent by the client to a predetermined address;

[0079] Since the communication peer in the public network cannot actively initiate communication with the client in the private network, that is, it cannot actively initiate communication with the client behind the NAT device, so in order to avoid this situation, the communication peer Before the client commu...

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Abstract

The invention discloses an NAT traversal method and a server and belongs to the network technical field. The method comprises the following steps: receiving first request information sent by a client to a predetermined address; establishing a first connection with the client based on the first request information; receiving second request information sent by the client through the first connection; establishing a second connection with a communication opposite end based on the second request information; and transmitting data packages between the client and the communication opposite end based on the first connection and the second connection. According to the NAT traversal method and the server, the problems that, in the prior art, when new types of NAT devices appear, a STUN server cannot detect the types of the NAT devices or the reliability of the detected types of the NAT devices is not high, so that the client cannot realize NAT traversal, and furthermore, the adaptability of the conventional scheme is not high are solved, thereby achieving the effect of realizing traversal without considering the types of the NAT devices.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a NAT traversal method and server. Background technique [0002] NAT (Network Address Translation, Network Address Translation) is one of the main technologies used in the WAN to solve the shortage of public IP (Internet Protocol, Internet Protocol address) addresses. In a wide area network using NAT devices, clients in the public network cannot actively initiate communication with clients in the private network, so how to implement NAT traversal has become one of the important research topics for technicians in the Internet communication field at this stage. [0003] An existing NAT traversal method includes: the client sends a NAT device type detection request to a STUN (Simple Traversal ofUDP overNATs, UDP simple traversal of NAT) server, thereby obtaining the NAT device type information corresponding to the client; The peer initiates a session in order to send the correspon...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L29/06
Inventor 陈俊兴
Owner BEIJING FEINNO COMM TECH
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