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Address distribution method and address distribution device

An allocation method and address technology, applied in the field of communications, can solve problems such as address allocation confusion

Active Publication Date: 2012-06-27
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides an address allocation method and device to solve the problem of address allocation confusion after the DHCP server lease is lost without increasing additional storage overhead

Method used

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  • Address distribution method and address distribution device
  • Address distribution method and address distribution device

Examples

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Embodiment Construction

[0039]Aiming at the problems existing in the above-mentioned prior art, the embodiment of the present invention provides a technical solution for address allocation. If the DHCP Server receives the renewal request of the address in the conflicting lease from the DHCP Client, the DHCP Server will recycle the corresponding address to In the DHCP address pool, and send a DHCP-NAK message to the DHCP Client, when the DHCP server receives the address acquisition request sent by the DHCP client, it will select an address from the DHCP address pool for allocation without adding additional storage overhead. On the premise, it solves the problem that after the lease of a stand-alone device is lost, the address allocation is confused, and even the old user (DHCP Client corresponding to the lost lease of the DHCP Server) is disconnected.

[0040] In order to better understand the technical solutions provided by the embodiments of the present invention, the following briefly describes the ...

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PUM

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Abstract

The invention discloses an address distribution method and an address distribution device, which are applied to a system containing a dynamic host configuration protocol (DHCP) server and a DHCP client side. The address distribution method includes that: the DHCP server receives contract extension requests sent by the DHCP client side; the DHCP server judges whether addresses requesting for contract extension are contained in a conflict lease recorded by itself, the DHCP server returns a DHCP-negative acknowledge (NAK) message to the DHCP client side and collects the addresses requesting for contract extension in a DHCP address pool on yes judgment; and the DHCP server selects addresses from the DHCP address pool for performing matching when the DHCP server receives address acquiring requests sent by the DHCP client side later. On premises of not adding additional memory expense, the address distribution method and the address distribution device solve problems of disorder in address distribution and even dropping of constant users caused by lease loss of stand-alone devices.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an address allocation method and equipment. Background technique [0002] DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) is a protocol used to dynamically assign network configuration parameters such as IP (Internet Protocol, Internet Protocol) addresses to network devices. [0003] DHCP adopts the client (Client) / server (Server) communication mode, the client submits a configuration request to the server, and the server returns the corresponding configuration information such as the IP address assigned to the client to realize the dynamic configuration of the IP address and other information. In a typical application of DHCP, it generally includes a DHCPServer and multiple Clients (such as PC (Personal Computer, personal computer), portable computer), and its network architecture schematic diagram can be as follows figure 1 shown....

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 甘长华
Owner NEW H3C TECH CO LTD
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