| 摘要 |
A card memory stores a home address, a home agent address and the like. When the card memory is attached to an IP terminal apparatus, the IP terminal apparatus retrieves the home address, home agent address and the like stored in the card memory, and automatically transmits to the home agent address of a home agent apparatus a message including the home address and a care-of address generated at the IP terminal apparatus, and requests a registration of the home address and the care-of address.
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