Method and apparatus for transforming addresses

An address translation and IP address technology, applied in the field of communication, can solve the problems of resource limitation of address translation equipment and inability to process requests in a timely and correct manner.
CN106559504AActive Publication Date: 2017-04-05HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2017-04-05

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Abstract

The invention relates to the technical field of communication, and discloses a method and apparatus for transforming addresses, aiming at reducing the handling load of an NAT device. The method includes the following steps: the NAT device receiving a message transmitted by a first terminal from a local area network or transmitted by a second terminal to the first terminal, acquiring the local area network IP address of the first terminal, and determining the transversal state attribute value corresponding to the local area network IP address of the first terminal, and if the transversal state attribute value is a first value which represents the first terminal and can achieve NAT transversal, leaving out ASPF processing on the message, and forwarding the message. Thus, by actively detecting and acquiring the NAT transversal capability of the terminal in the local area network, the method enables the NAT device to changes the passive processing of address transformation of a multi-channel protocol message into active processing, which can reduce the amount of processing and loads of the NAT device, increases the processing efficiency of address transformation, and can reduce the risk of service break off brought by ASPF processing.
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Description

Technical field

[0001] The present invention relates to the field of communication technology, in particular to an address conversion method and device. Background technique

[0002] In the communication process between the terminal located in the local area network and the terminal in the wide area network, in order to ensure that the network address is correct for normal communication, the NAT device will automatically modify the message when the exchanged message passes through the Network Address Transform (NAT) device Internet Protocol (IP) address information of the outer header. However, some messages based on multi-channel protocols that distinguish signaling and media also carry IP addresses in the data part, which is the IP address of the inner header of the message, so the NAT device also needs to modify the data part of the message at the same time , That is, modify the IP address of the inner header of the message so that the IP address of the inner header of the me...

Claims

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