Method for implementing UDP hole punching

Abstract

The invention discloses a method for implementing UDP hole punching, comprising the following steps: A. a client side and a communication opposite side respectively acquire public network IP addresses corresponding to self; B. the client side initiates conversation to the communication opposite side to notice the public network IP address corresponding to the client side to the communication opposite side and simultaneously acquire the public network IP address corresponding to the communication opposite side; and C. the client side and the communication opposite side perform UDP hole punching according to the public network IP addresses corresponding to the two sides. The invention actively initiates a hole punching request to the communication opposite side through the client side, the communication opposite side sends a hole punching response to the client side after receiving the hole punching request, then the client side sends hole punching identification to the communication opposite side, thus implementing UDP hole punching between the client side and the communication opposite side successfully, which not only shortens time consuming in UDP hole punching, but also implements bandwidth resource occupied in transmission data in the UDP hole punching process, and satisfies the demands of immediate communication system application, thereby improving network experience of users.

Description

technical field [0001] The invention relates to the technical field of Internet communication, in particular to a method for realizing UDP hole punching. Background technique [0002] At present, with the continuous increase of Internet users, the Internet Protocol Version 4 (IPv4) address resources used by the Internet are already very tight, and it is simply not enough for every user to have an IPv4 address that can directly access the Internet, that is, Public IP address. A large number of enterprise units only have a small number of public network IP addresses, so the enterprise can only use a large number of private network IP addresses that cannot directly access the Internet to meet the internal network communication needs of users in the enterprise. In order to allow users in the enterprise to use Internet resources , Enterprises generally use Network Address Translation (NAT) equipment to convert private IP addresses within the enterprise into public IP addresses t...

AI Technical Summary

Problems solved by technology

[0013] The client and the communication peer need to complete a request confirmation process respectively to open up the two-way data channel between the two, and the client and the communication peer can communicate directly. It can be seen that in the existing UDP hole punching method, the client At least 4 times of data transmission and reception between the communication peer can be used for direct communication, which not only occupies the user's bandwidth resources, but also takes a long time to punch holes, which is not conducive to the application of instant messaging systems and reduces the user's network experience

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