DEVICE FOR PREPARING A HOME AGENT LIST AND A METHOD THEREFOR, CONCERNED WITH REDUCING TIME FOR PREPARING A HOME AGENT ADDRESS FIELD OF A HOME AGENT ADDRESS RETRIEVAL RESPONSE MESSAGE

摘要

PURPOSE: A device for preparing a home agent list and a method therefor are provided to prepare a home agent list in an order of preference from the beginning, thereby reducing time for preparing a home agent address field of a home agent address retrieval response message. CONSTITUTION: A home agent notice message receiver(111) receives a home agent notice message transmitted from a home agent(11). A preference home agent information recorder(112) records information included in the received home agent notice message in a position corresponding to an order of preference of a home agent list, according to the order of the preference included in the received home agent notice message. The home agent(11) is a kind of routers(14,16), and the home agent notice message is a kind of router notice messages.