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IP address conversion method and device, and gateway system

A technology of IP address and conversion method, applied in the direction of transmission system, electrical components, etc., to achieve the effect of simplifying management strategies

Active Publication Date: 2017-06-27
UCLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the calculation function it adopts can only be applied to select a fixed address in the continuous IP address group

Method used

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  • IP address conversion method and device, and gateway system
  • IP address conversion method and device, and gateway system
  • IP address conversion method and device, and gateway system

Examples

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Embodiment Construction

[0034] Preferred embodiments of the IP address translation method, IP address translation system, and gateway system according to the present invention will be described with reference to the accompanying drawings.

[0035] In order to make the technical solutions and advantages of the present invention clearer, an application example of the present invention is used to further illustrate below.

[0036] Such as figure 1 As shown, the gateway system of the present invention includes a gateway gtw located at the boundary between the local area network and the Internet, the gateway gtw is provided with an IP address translation device 1, and the gateway system also includes 10 LAN internal network devices T1 connected to the IP address translation device 1 , T2, T3...T10, the 10 internal network devices are connected to the Internet through the gateway gtw to access the remote servers 11.1.1.1 and 120.8.6.8. Here, the NAT function is usually provided by routers, and now firewal...

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PUM

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Abstract

The present invention provides an IP address conversion method and device, and a gateway system. The IP address conversion method is enforced in the gateway, a plurality of internal IP addresses of a plurality of internal network devices connected with a gateway mapped to a plurality of external IP addresses according to a mapping function selected from a plurality of preset mapping functions stored in the gateway, and the external IP addresses in part at least are discontinuous IP addresses. The IP address conversion method and device, and the gateway system can realize address conversion in the condition without continuous IP address set and can freely change a mapping function, and the management of the addresses are more flexible and simpler.

Description

technical field [0001] The invention belongs to the field of computer network communication, and in particular relates to an IP address conversion method, an IP address conversion device and a gateway system for a local area network gateway connected with multiple internal network devices. Background technique [0002] The packet domains in the current network are connected using IP-based protocols. A user equipment (User Equipment, UE) applies for an IP address from a gateway in a network attach process or a service request process, and the IP address is used to connect to a packet data network (Packet Data Network, PDN). Then the gateway allocates an IP address for external interconnection to the UE. With the continuous consumption of network addresses, there is a gradual shortage of IP addresses. [0003] At present, effective methods to solve the shortage of IP addresses include NAT and CIDR. [0004] The NAT (Network Address Translator) function is usually integrated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
CPCH04L61/2503
Inventor 文旭
Owner UCLOUD TECH CO LTD