DHCP configuration method and DHCP client

Abstract

The embodiment of the invention provides a DHCP configuration method and a DHCP client, applied to the technical field of local area networks. The method includes the following steps: if detecting that the DHCP client performs network switching, and when the DHCP client is in a SELECTING state, a REQUESTING state, or a REBINDING state, switching the DHCP client to an INIT state to ensure that theDHCP client enters a DHCP initialization process; and if detecting that the DHCP client performs network switching, and when the DHCP client is in a BOUND state, a RENEWING state, or a REBOOTING state, switching the DHCP client to an INIT-REBOOTING state to ensure that the DHCP client enters a fast DHCP initialization process. According to the embodiment of the invention, when the DHCP client performs network switching, the DHCP client can quickly resume normal communication.

Description

technical field [0001] The present invention relates to the technical field of local area network, in particular to a DHCP configuration method and a DHCP client. Background technique [0002] With the vigorous development of computer technology and network technology, the application of network in all walks of life is becoming more and more extensive. Every networked computer in the network needs an IP (Internet Protocol, Internet Protocol) address to communicate normally. An address is an important network resource. In a local area network, for most dial-up users, it is not advisable to assign a fixed IP address to each user due to the discrete time and space of the user's Internet access, which will cause a lot of waste of IP address resources. Therefore, IP addresses are usually allocated to users by means of dynamic allocation. [0003] Among them, DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) is usually used in large-scale local area...

AI Technical Summary

Problems solved by technology

[0005] Therefore, if a network switch occurs on the DHCP client and the network switch occurs on the DHCP server, then the DHCP client may not continue to use the original IP address with a high probability, and the DHCP client cannot obtain a new IP address in time. As a result, the DHCP client that has undergone network switching cannot communicate normally within a certain period of time.

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