Mobile IP communication terminal, mobile IP communication method, and computer product
First Claim
1. A mobile internet-protocol (IP) communication terminal that supports a first IP, and can be connected to a first network that supports the first IP and a second network that supports a second IP that is different from the first IP, wherein when the mobile IP communication terminal is connected to the second network via a second repeater and performs a packet communication with an IP communication terminal that supports the first IP, the first network and the second network are connected via a translator to perform a packet communication, and the mobile IP communication terminal registers a connection position of the mobile IP communication terminal with a first repeater that has a packet transfer function, the mobile IP communication terminal comprising:
- an IP deciding unit that decides whether the mobile IP communication terminal is connected to the first network or the second network;
a unique-address generating unit that generates a first address that is unique to the mobile IP communication terminal, when the IP deciding unit decides the mobile IP communication terminal is connected to the second network;
a translator-through address generating unit that generates a second address so as to connect the mobile IP communication terminal to the first network via the translator, based on position information of the translator stored in the second repeater, and a translator-through position-registration-signal transmitting unit that transmits a registration signal, for registering the connection position, to the first repeater, the registration signal including a destination address and a source address, the destination address having the second address and an address of the first repeater, the source address having an address of the connection position, and the address of the connection position corresponding to the second IP and acquired from the second network.
1 Assignment
0 Petitions
Accused Products
Abstract
A mobile IP communication terminal connected to a network at a remote place decides whether position registration can be performed by the IP (IPv4). When the position registration is possible, a normal position registration process is performed. When the position registration is impossible, the mobile IP communication terminal uniquely generates a CoA (Care of Address), edits a position registration signal, and transmits a position registration signal to a network repeater, which has a position registration function of the mobile IP communication terminal, based on a header obtained by an IP (IPv6) of the network to which the mobile IP communication terminal is connected and a designated IP (UDP).
24 Citations
12 Claims
-
1. A mobile internet-protocol (IP) communication terminal that supports a first IP, and can be connected to a first network that supports the first IP and a second network that supports a second IP that is different from the first IP, wherein
when the mobile IP communication terminal is connected to the second network via a second repeater and performs a packet communication with an IP communication terminal that supports the first IP, the first network and the second network are connected via a translator to perform a packet communication, and the mobile IP communication terminal registers a connection position of the mobile IP communication terminal with a first repeater that has a packet transfer function, the mobile IP communication terminal comprising: -
an IP deciding unit that decides whether the mobile IP communication terminal is connected to the first network or the second network;
a unique-address generating unit that generates a first address that is unique to the mobile IP communication terminal, when the IP deciding unit decides the mobile IP communication terminal is connected to the second network;
a translator-through address generating unit that generates a second address so as to connect the mobile IP communication terminal to the first network via the translator, based on position information of the translator stored in the second repeater, and a translator-through position-registration-signal transmitting unit that transmits a registration signal, for registering the connection position, to the first repeater, the registration signal including a destination address and a source address, the destination address having the second address and an address of the first repeater, the source address having an address of the connection position, and the address of the connection position corresponding to the second IP and acquired from the second network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A mobile internet-protocol (IP) communication method performed by a mobile internet-protocol (IP) communication terminal, wherein
the mobile IP communication terminal supports a first IP, and can be connected to a first network that supports the first IP and a second network that supports a second IP that is different from the first IP, and when the mobile IP communication terminal is connected to the second network via a second repeater and performs a packet communication with an IP communication terminal that supports the first IP, the first network and the second network are connected via a translator to perform a packet communication, and the mobile IP communication terminal registers a connection position of the mobile IP communication terminal with a first repeater that has a packet transfer function, the mobile IP communication method comprising: -
deciding whether the mobile IP communication terminal is connected to the first network or the second network based;
generating a first address that is unique to the mobile IP communication terminal, when it is decided in the deciding that the mobile IP communication terminal is connected to the second network;
generating a second address so as to connect the mobile IP communication terminal to the first network via the translator, based on position information of the translator stored in the second repeater, and transmitting a registration signal, for registering the connection position, to the first repeater, the registration signal including a destination address and a source address, the destination address having the second address and an address of the first repeater, the source address having an address of the connection position, and the address of the connection position corresponding to the second IP and acquired from the second network. - View Dependent Claims (11)
-
-
12. A computer-readable recoding medium that stores a computer program that implements mobile internet-protocol (IP) communication method on a computer, wherein
the computer supports a first IP, and can be connected to a first network that supports the first IP and a second network that supports a second IP that is different from the first IP, and when the computer is connected to the second network via a second repeater and performs a packet communication with an IP communication terminal that supports the first IP, the first network and the second network are connected via a translator to perform a packet communication, and the computer registers a connection position of the computer with a first repeater that has a packet transfer function, the computer program causing the computer to execute: -
deciding whether the computer is connected to the first network or the second network based;
generating a first address that is unique to the computer, when it is decided in the deciding that the computer is connected to the second network;
generating a second address so as to connect the computer to the first network via the translator, based on position information of the translator stored in the second repeater, and transmitting a registration signal, for registering the connection position, to the first repeater, the registration signal including a destination address and a source address, the destination address having the second address and an address of the first repeater, the source address having an address of the connection position, and the address of the connection position corresponding to the second IP and acquired from the second network.
-
Specification