Registration server, CGN device, service delivery system and index and forwarding method
A server and device technology, applied in the field of communication, which can solve problems such as service traversal
Active Publication Date: 2017-04-05
CHINA TELECOM CORP LTD
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Problems solved by technology
[0003] One object of the present invention is to solve the problem of service traversal under the CGN environment
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[0042] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0043] A schematic diagram of an embodiment of the registration server of the present invention is as follows figure 1shown. Among them, 101 is a service display module. When an end user in the CGN environment needs to publish his own service on the Internet, the end user will register his will at the registration server, and the service display module 101 of the registration server can display the registered service to the user. Service record, the service record includes the associated information of the internal network address and the external network address of the service terminal that provides the service in the corresponding CGN environment, and the user can select the service terminal that provides the service according to the content displayed by the service display module 101 . 102 is a request obtaining mo...
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The present invention provides a registration server, a CGN device, a service delivery system and an index and forwarding method, and relates to the communication technology field. The service delivery method comprises: the registration server receives an access request from a request terminal, wherein the request terminal determines the access request according to the service record displayed by the registration server, and the service record includes intranet address and the external address of the service terminal in the corresponding CGN environment; the address of the request terminal, the external address of the service terminal and the port offset are extracted according to the access request and sent to the CGN device corresponding to the service terminal. According to the method provided by the invention, the registration server, the CGN device, the service delivery system and the index and forwarding method can display the address information of the service terminal to users for the request terminal to perform selection and send the address of the request terminal, the external address of the service terminal and the port offset to the corresponding CGN device to allow the CGN device to generate corresponding reverse NAT conversation so as to allow the terminal users in the CGN environment to externally provide service and realize the service crossing in the CGN environment.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a registration server, a CGN device, a service providing system, and an indexing and forwarding method. Background technique [0002] NAT (Network Address Translation, Network Address Translation) technology is an important technology in the transition period from IPv4 to IPv6. At present, the NAT technology deployed in the carrier network usually allocates address resources based on port blocks. This technology for network address translation based on port blocks can be called CGN (Carrier-Grade NAT, carrier-grade network address translation) technology. In the environment where the CGN technology is deployed, how to access the service port provided by the end user from the Internet has always been a difficult problem to solve. Existing service traversal solutions are all implemented by the top-level service system itself, most of which are implemented by deploying a tra...
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IPC IPC(8): H04L29/12
CPCH04L61/2517H04L61/256
Inventor 朱永庆李小洋伍佑明
Owner CHINA TELECOM CORP LTD