UPnP (Universal Plug-n-Play) gateway equipment NAT (Network Address Translation) port mapping maintenance method and equipment thereof

A port mapping and gateway device technology, applied in the field of NAT port mapping maintenance, can solve the problems of reducing user network experience quality, user investment, multi-management costs, etc., and achieve the effect of reducing work costs and risks, and achieving a good network service experience.

Active Publication Date: 2013-01-09
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this processing method often requires users to invest more management costs, and will reduce the user's network experience quality

Method used

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  • UPnP (Universal Plug-n-Play) gateway equipment NAT (Network Address Translation) port mapping maintenance method and equipment thereof
  • UPnP (Universal Plug-n-Play) gateway equipment NAT (Network Address Translation) port mapping maintenance method and equipment thereof
  • UPnP (Universal Plug-n-Play) gateway equipment NAT (Network Address Translation) port mapping maintenance method and equipment thereof

Examples

Experimental program
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Embodiment Construction

[0032] The basic idea of ​​the present invention is to enable a timer for aging operation with a specified aging timer timeout time for all port mappings added by IGD through UPnP. When the timer expires, the IGD confirms whether to delete the port mapping according to whether the NAT forwarding table corresponding to the port mapping is in use.

[0033] like figure 1 The shown IGD includes an aging timer setting module, a NAT port mapping maintenance module, and an aging timer;

[0034] The aging timer setting module is used to, after receiving the NAT port mapping addition operation sent by the control point, enable the aging timer and set the aging timer timeout for the NAT port mapping;

[0035] The aging timer is used to time the NAT port mapping, and triggers the NAT port mapping maintenance module after timeout;

[0036] The NAT port mapping maintenance module is used for performing overtime maintenance processing when the aging timer expires.

[0037]The aging timer...

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Abstract

The invention provides a UPnP (Universal Plug-n-Play) gateway equipment NAT (Network Address Translation) port mapping maintenance method and gateway equipment for realizing the method, and the gateway equipment can immediately delete ossified port mapping. The UPnP gateway equipment NAT port mapping maintenance method comprises the steps of: starting an ageing timer aiming at an NAT port after receiving the NAT port mapping addition operation by the gateway equipment, and setting the timeout time of the ageing timer; and when the ageing timer is time-out, deleting the NAT port mapping. Through configuring the ageing timer for the NAT port mapping, ossified port mapping can be aged overtime within a proper time range, thereby achieving the aims of automatically deleting the ossified port mapping by the gateway equipment and recycling resources on the premise of not restarting the gateway equipment or manually interfering by a user.

Description

technical field [0001] The invention relates to Universal Plug and Play (UPnP) technology, especially the NAT port mapping maintenance technology of Gateway Device (IGD) with the functions of adding, deleting and editing Network Address Translation (NAT) port mapping. Background technique [0002] The UPnP IGD DCP (Device Control Protocol, Device Control Protocol) 1.0 specification stipulates that NAT port mapping (Port Mapping) can be based on the lease time specified by the control point for NAT port mapping (Lease Duration, the unit is seconds, and the value range is 0~ Whether the maximum value of 4-byte unsigned integer, that is, 4294967295 seconds) is 0 is divided into dynamic NAT port mapping and static NAT mapping. The specific regulations are: when the lease time is greater than 0, it is dynamic NAT port mapping; when the lease time is equal to 0, it is static NAT mapping. [0003] The port mapping maintenance rules defined by UPnP IGD DCP1.0 are: [0004] For dyn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L12/66
Inventor 申杰钟岳林丁满义吴小文
Owner MAIPU COMM TECH CO LTD
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