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IP address renewal method and apparatus

An IP address and lease renewal technology, applied in the communication field, can solve problems such as failure and inconsistency of client 12 service configurations

Inactive Publication Date: 2018-05-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In related technologies, each time the client 12 is powered on, it will send an address acquisition request to the DHCP controller 11 to obtain information such as an IP address and a controller address, so when the client 12 is powered off, the lease time for the IP address of the DHCP server 11 exceeds When the time limit expires, the IP addresses obtained twice by the client 12 may be inconsistent, causing the controller 13 to invalidate the original service configuration of the client 12

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  • IP address renewal method and apparatus
  • IP address renewal method and apparatus
  • IP address renewal method and apparatus

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Embodiment Construction

[0102] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are described below in conjunction with the accompanying drawings The program is described in further detail.

[0103] Before describing the technical solutions of the embodiments of the present invention, firstly, the application scenarios of the embodiments of the present invention will be described with reference to the accompanying drawings. see figure 2 , is a schematic diagram of an application scenario provided by an embodiment of the present invention. This application scenario includes a DHCP server 21 , a client 22 and a controller 2 . During the specific implementation of the embodiment of the present invention, the c...

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PUM

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Abstract

The embodiment of the invention discloses an IP address renewal method and apparatus. The method comprises the following steps: a controller obtains dynamic host configuration protocol DHCP address information from a client, wherein the DHCP address information comprises an IP address of the client, and an MAC address of the client is an address of a DHCP server that allocates the IP address to the client; and when the controller determines that the client is powered off, the controller uses the address of the DHCP server to send a renewal IP request comprising the IP address and the MAC address to renew the IP address until the client registers with the controller. In the technical scheme of the invention, the client can use the same IP address every time when the client is powered on, thereby ensuring that the service configuration related to the IP address of the client continues to be effective and does not need to be changed.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method and device for renewing an IP address lease. Background technique [0002] DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) is a LAN network protocol, using UDP (User Datagram Protocol, User Datagram Protocol) to work. The DHCP protocol adopts the client / server model. When the DHCP server receives the address information request sent by the client logging in to the TCP / IP (Transmission Control Protocol / Internet Protocol) network, the DHCP server sends the client Send relevant address information (such as IP address, Gateway address, controller address, etc.) to realize dynamic configuration of client address information. [0003] In practical applications, due to reasons such as security and business needs, customers usually configure corresponding controllers in scenarios such as enterprise campuses and data center networks to mana...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/5053H04L61/5014H04L61/103H04L2101/622
Inventor 顾建国
Owner HUAWEI TECH CO LTD