Recovering method of IP address and DHCP server

An IP address and server technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as the inability to assign IP addresses, and achieve the effect of improving usability
CN101674338AInactive Publication Date: 2010-03-17RUIJIE NETWORKS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RUIJIE NETWORKS CO LTD
Publication Date
2010-03-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention provides a recovering method of an IP address and a DHCP server. The recovering method of the IP address comprises the following steps: a dynamic host configuration protocol (DHCP) server detects whether conflict exists in the IP address in an IP address conflict queue; the IP address with no conflict is eliminated from the IP address conflict queue; and the IP address is added to an address pool. By the embodiment of the invention, the conflict IP address can be recovered timely, thus ensuring that enough allocable IP addresses exist in the DHCP address pool and improving the availability of the DHCP service.
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Description

technical field

[0001] The invention relates to a dynamic host configuration protocol (DHCP) technology, in particular to an IP address recovery method and a DHCP server. Background technique

[0002] Dynamic Host Configure Protocol (DHCP, Dynamic Host Configure Protocol) is based on the client / server working mode, and the DHCP server assigns IP addresses and other parameters to the DHCP clients that need dynamic configuration.

[0003] In the IP address allocation process, in order to prevent the newly allocated IP address from conflicting with the existing IP address in the current network, it can be detected from the server side and the client side.

[0004] When the IP address conflict is detected from the server side, before the DHCP server allocates the IP address to the DHCP client, the conflict detection can be completed by using an Internet Information Control Protocol (ICMP, Internet Control Message Protocol) message. The DHCP server first sends an ICMP echo reque...

Claims

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