Port allocation method and device for nat traversal server
A distribution method and server technology, applied in the field of communication, can solve the problems of inability to meet communication requirements and low efficiency, and achieve the effect of improving utilization efficiency and solving port multiplexing.
Active Publication Date: 2016-08-24
CHINA UNITED NETWORK COMM GRP CO LTD
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Problems solved by technology
However, when there is no free port on the NAT traversal server, it must wait until the used port is released before it can be allocated to users with communication needs, which is very inefficient and cannot meet the existing communication needs
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Embodiment Construction
[0014] figure 1 A flowchart of a port allocation method for a NAT traversal server provided by an embodiment of the present invention, such as figure 1 As shown, the method includes:
[0015] Step 100, the network address translation NAT traversal server receives a port query request message sent by the network device for assigning a port for communication interaction between the first mobile terminal and the second mobile terminal;
[0016] When the first mobile terminal and the second mobile terminal under different private networks perform IP communication, first negotiate the IP address of the NAT traversal server occupied by the two mobile terminals for communication interaction and the port identification of the port on the NAT traversal server , there are many specific negotiation methods, examples are as follows: method 1, after the first mobile terminal or the second mobile terminal negotiates the port information with the NAT traversal server through the NAT gateway...
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The invention provides a port assignment method and device of an NAT traversing server. The method includes the steps that the NAT traversing server receives port query request information, which is sent by network equipment and used for port assignment of communication interaction between a first mobile terminal and a second mobile terminal; if the situation that no free port exists is judged, flow information of occupied ports is monitored in a preset time period, and if at least one occupied port not reaching a full-load state is found available according to the flow information and a preset threshold, the occupied port is assigned to the communication interaction between the first mobile terminal and the second mobile terminal, wherein the mobile terminal corresponding to the communication interaction currently carried by the available occupied port does not include the first mobile terminal and the second mobile terminal. According to the port assignment method and device of the NAT traversing server, utilization efficiency of the NAT traversing server is improved, and requirements of existing communication are met.
Description
technical field [0001] The embodiment of the present invention relates to the technical field of communication, and in particular to a port allocation method and device for a NAT traversal server. Background technique [0002] With the popularity of the mobile Internet, most mobile terminals have the ability to access the Internet. Due to the exhaustion of public network IP addresses, the mobile terminal accesses the Internet through its own corresponding Network Address Translation (NAT) device according to the private network IP address assigned by the operator, thus causing the mobile terminal to It does not have the ability to address the whole network. Therefore, when mobile terminals A and B are in different private networks, because they cannot obtain the public network IP address of the other party, communication and interaction between A and B cannot be performed through IP, such as: transmitting voice, audio, Multimedia data such as video has certain limitations....
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IPC IPC(8): H04L29/12
Inventor 田新雪张成岩严斌峰
Owner CHINA UNITED NETWORK COMM GRP CO LTD