Importance

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Abstract

A method of managing domain names for dynamically or relatively statically allocated IP addresses over a network based on a transmission control protocol/Internet protocol (TCP/IP) is provided. Here, being relatively static means that an identical IP address is consecutively allocated at least twice by a dynamic host configuration protocol (DHCP) routine. In the method, a DHCP server maintains an information pair of an IP address and a hardware identification and broadcasts renewed contents to a domain name service (DNS) server if there is a renewal of the information pair. A DHCP client maintains an information pair of an IP address and a hardware identification and broadcasts renewed contents to the DNS server if there is a renewal of the information pair. The DNS server receives the information pairs of an IP address and a hardware identification from the DHCP server and the DHCP client and adds the information pair of an IP address and a hardware identification received from the DHCP server to database for storing information pairs of an IP address and a hardware identification. The DNS server adds the information pair of an IP address and a hardware identification received from the DHCP client to the database or renews the database using the IP address-hardware identification information pair received from the DHCP client. According to this method, the DHCP server and the DHCP client can transmit an information pair of an IP address and a hardware identification to the DNS server, so that a domain name service with respect to a dynamically or relatively statically allocated IP address can be provided.

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First Claim