NAT conversion method and system based on mobile internet

Abstract

The invention discloses an NAT method and system based on the mobile Internet. The method is achieved through mixed NAT mapping of mapping of a static IP address and mapping of a dynamic port. The method includes the steps that NAT is called at the exit of an IP layer and NAT is called at the entrance of the IP layer; NAT is called at the exit of the IP layer to transmit a data package to an NAT router; whether a routing table entry comprising the destination IP address of the data package exists or not is checked; whether an NAT table entry comprising an interior local IP address and an interior global IP address exists in an NAT address mapping table of a resource pool or not is checked; NAT is called at the entrance of the IP layer to transmit the data package to the NAT router; whether the routing table entry comprising the destination IP address of the data package exists or not is checked; whether a HASH table entry comprising an interior global IP address and an interior local IP address exists in the NAT address mapping table of the resource pool or not is checked. The NAT method and system based on the mobile Internet can easily identify a mobile communication terminal user and can perform user access source tracing and analysis.

Description

technical field [0001] The invention relates to a NAT conversion method and system, in particular to a mobile Internet-based NAT conversion method and system. It belongs to the field of mobile communication. Background technique [0002] With the rapid development of the mobile Internet, a door to the Internet world has been opened for mobile communication terminal users. The mobile Internet combines the convenience of mobile communication and the rich content of the Internet, and has become a cross-field of the integrated development of the communication industry and the Internet industry. Has a huge market prospect. However, due to the fundamental difference between the mobile communication network and the Internet in terms of user identification, the identity identification in the mobile communication network is a mobile phone number, and the identification identification in the Internet is an IP address. Due to the large number of mobile communication terminal users, In...

AI Technical Summary

Problems solved by technology

[0004] In the current network of telecom operators, in order to solve the problem of insufficient IPv4 addresses when a large group of mobile communication terminal users access the Internet, IP address translation is used to realize the sharing of public network IP addresses, but this leads to a large number of mobile Internet platforms. User access IP addresses are duplicated, which makes it more difficult to identify users. In addition, in order to improve the performance of telecom operators' IP address translation, most of them currently use independent multi-core CPUs for processing, and the main processing CPU unit performs splitting and distribution. However, At present, this processing method cannot meet the growth rate of the number of Internet users of telecom operators.

Images