Method and system for realizing port re-direction by router interface address

A technology of interface address and router, which is applied in the field of data communication, can solve the problems such as the inability to use the IP address of the router interface, and the inability to share one IP address with dynamically reusable NAT, so as to reduce costs, improve flexibility, and operate safely and reliably.

Inactive Publication Date: 2007-11-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a method and system for realizing port redirection with the router interface address, which is used to overcome that the port redirection function in the prior art cannot use the interface IP address of the router, and cannot be used with dynamic Disadvantages of reusing NAT to share one IP address

Method used

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  • Method and system for realizing port re-direction by router interface address
  • Method and system for realizing port re-direction by router interface address
  • Method and system for realizing port re-direction by router interface address

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Embodiment Construction

[0039] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] As shown in FIG. 1 , it is a flow chart of the method for realizing port redirection by router interface address in the present invention. The method flow is a method in which the port redirection function is configured with the external public network IP address of the router interface on the router in the present invention, and the port redirection function and the dynamic reusable NAT are allowed to use the same external public network IP address, specifically including Proceed as follows:

[0041]Step 101, configure the Access Control List (Access Control List, ACL) function on the router, this function is applied to the dynamic reusable NAT, can control specific private network users to access the external public network through the dynamic reusable NAT;

[0042] Step 102, configure the NAT inco...

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Abstract

The method comprises: configuring the access control list on the router; configuring the attribute parameters of said router; according to the attribute parameters, configuring the re-directional rule of the port; according to the access control list and said attribute parameters, configuring the dynamical reusable NAT rule.

Description

technical field [0001] The invention relates to routing and forwarding technology in the field of data communication, in particular to a method and system for realizing port redirection with router interface address. Background technique [0002] Currently, with the rapid development of the network, IPv4 (Internet Protocol Version 4, Internet Protocol Version 4) addresses are facing the problem of address exhaustion. NAT (Network Address Translation, Network Address Translation) can help IPv4 avoid address exhaustion. NAT technology is an address mapping technology, which is usually used when an internal host with a private IP address in a subdomain accesses an external host to map the host's private IP address to an externally uniquely identifiable public IP address; at the same time, the external host returns The public IP address of the internal host is mapped back to the private IP address of the host marked internally, so that the returned data packets can reach the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L29/12H04L12/721
Inventor 陈尔严郑轶卢中军林晨
Owner ZTE CORP
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