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Method and device for hiring IP address

A technology of IP address and lease period, which is applied in the field of network communication and can solve problems such as difficult access of DHCP clients to the network

Inactive Publication Date: 2008-06-18
SHENZHEN COSHIP ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method for renting an IP address to solve the problem that the DHCP client is difficult to effectively access the network when the lease period provided by the DHCP server is very short

Method used

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  • Method and device for hiring IP address
  • Method and device for hiring IP address

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] In the embodiment of the present invention, when the use period reaches half of its lease period, the DHCP client initiates a lease renewal request to the DHCP server, requesting to continue renting the currently used IP address, and if the DHCP server authorizes the continuation of use within the set timeout period If the lease renewal response of the currently used IP address is received, the currently used IP address will continue to be used; if the lease renewal response from the DHCP server is not obtained, or if the lease renewal response is received from the DHCP server that prohibits the continued use of the currently used IP address, the IP address will be re-submitted. The DHCP server requests to assign a new IP address.

[0019] ...

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PUM

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Abstract

The invention is applicable to the field of network communication and provides an IP address lease method and a device thereof. The method includes the following steps of transmitting a lease renewal request to a DHCP server to ask for continuously leasing the currently used IP address when the using period of the currently used IP address reaches to a half of the lease period; setting a timeout for the DHCP server to response the lease renewal request and the timeout is not longer than the left time of the leasing period of the currently used IP address; within the timeout, judging whether the right to continuously use the currently used IP address is available according to a lease renewal response returned by the DHCP server, if yes, the lease renewal period of the currently used IP address is updated, if not, the DHCP service is asked for distributing a new IP address. The invention can lead a DHCP client to be still effectively accessed into the network under the situation that the leasing period provided by the DHCP server is very short.

Description

technical field [0001] The invention belongs to the field of network communication, in particular to an IP address renting method and device. Background technique [0002] Any user computer connected to the Internet needs to be configured with an Internet Protocol (Internet Protocol, IP) address, a subnet mask, an IP address of a default router, and an IP address of a domain name server. Currently, a server participating in network access in a broadband network is a DHCP server using a standard Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP). When the user terminal accesses the network, the user terminal first initiates the DHCP process to the DHCP server and interacts with the DHCP server. The DHCP server uses the client server mode, and the user terminal that needs an IP address broadcasts and sends a discovery report to the DHCP server when it is started. At this time, the user terminal becomes a DHCP client. [0003] The DHCP server firs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
Inventor 陈琳赵小虎
Owner SHENZHEN COSHIP ELECTRONICS CO LTD