A private network address allocation method, device and system

A technology of private network address and allocation method, which is applied in the field of private network address allocation method, device and system, and can solve problems such as inability to perform normal network communication and address conflicts

Active Publication Date: 2017-04-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the private network addresses of the two terminals are the same, it is considered that an address conflict has occurred, and one of the two terminals with the same private network address cannot perform network communication normally.

Method used

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  • A private network address allocation method, device and system
  • A private network address allocation method, device and system
  • A private network address allocation method, device and system

Examples

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0054] When assigning a private network address to a terminal, the following two methods can be used:

[0055] (1) Use the PMIPv6 (proxy mobile Internet Protocol version 6: proxy mobile Internet Protocol version 6) protocol to assign a private network address to the terminal. Specifically, when the terminal is attached to the MAG (mobile access gateway: Mobile Access Gateway), the MAG sends the message from the LMA (Local Mobility Anchor: Home Mobility ...

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Abstract

The embodiment of the present invention discloses a private network address allocation method, including: receiving a Dynamic Host Configuration Protocol (DHCP) request from a terminal for requesting allocation of a private network address; address, and when the obtained private network address conflicts with the stored private network address, continue to obtain the private network address from the address distribution network element; when the private network address obtained from the address distribution network element is in conflict with the stored private network address When the network addresses do not conflict, a DHCP response message is returned to the terminal, and the DHCP response message carries the acquired private network address. The embodiment of the invention also discloses a private network address allocation method, device and system. The present invention can ensure that the private network address returned to the terminal does not conflict with the private network addresses of other terminals in the local area network, thereby ensuring that the terminal can perform normal network communication.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a private network address allocation method, device and system. Background technique [0002] IPV4 (Internet Protocol version 4: Internet Protocol version 4) addresses can be divided into public network addresses and private network addresses. Among them, the private network address is unique and valid in a local area network, and in different local area networks, different terminals can use the same private network address. [0003] In the same local area network, the private network address of the terminal may come from the packet data network gateway PGW or LMA (Local Mobility Anchor: Home Mobility Anchor) of different local area networks. Since PGWs or LMAs of different LANs may allocate the same private network address, the situation that two terminals in the same local area network may have the same private network address may occur. If the private network a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCH04L61/5038H04L61/5014
Inventor 刘海靳维生
Owner HUAWEI TECH CO LTD
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