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AssigneeHitachi, Ltd.
InventorsHidemitsu Higuchi, Toshikazu Yasue, Ken Watanabe, Kazuaki Tsuchiya
Estimating the term…
A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network incorporates, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.
A packet communication method in a network system comprising a first network corresponding to a first communication protocol, a second network corresponding to a second communication protocol and a plurality of packet communication apparatuses connected to at least one of said first network and said second network,
A packet communication method in a network system comprising a first network corresponding to a first communication protocol, a second network corresponding to a second communication protocol, and a plurality of packet communication apparatuses connected to at least one of said first network and said second network,
A packet communication system for a network system comprising a first network corresponding to a first communication protocol, a second network corresponding to a second communication protocol and a plurality of packet communication apparatuses connected to at least one of said first network and said second network, comprising:
A packet communication system for a network system comprising a first network corresponding to a first communication protocol, a second network corresponding to a second communication protocol and a plurality of packet communication apparatuses connected to at least one of said first network and said second network, comprising:
A recording medium storing a packet communication program for a network system comprising a first network corresponding to a first communication protocol, a second network corresponding to a second communication protocol and a plurality of packet communication apparatuses connected to at least one of said first network and said second network,
A recording medium storing a packet communication program for a network system comprising a first network corresponding to a first communication protocol, a second network corresponding to a second communication protocol and a plurality of packet communication apparatuses connected to at least one of said first network and said second network,
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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Translation of Internet protocol [IP] addresses: between different IP versions
Network arrangements, protocols or services for addressing or naming
Of the same type: translation of Internet protocol [IP] addresses
Translation architectures other than single NAT servers: translation at a client
Term end not estimated
1. Field of the Invention
The present invention relates to a method of operating IPv4-network-compatible applications on an IPv6 network, a packet generation method, an IP-network-dedicated translator and an NAT (Network Address Translator) as well as a recording medium having a packet generation program recorded thereon.
2. Description of Related Art
FIG. 1 is a configuration diagram of a LAN control apparatus according to a first embodiment of the present invention.
FIG. 2 shows an exemplary configuration of a communication network system according to an exemplary embodiment of the present invention.
FIG. 3 illustrates an exemplary structure of an address translation table of a host A according to an exemplary embodiment of the present invention.
Exemplary embodiments of the present invention will be described by reference to the drawings.
At first, description will be made of an exemplary network configuration according to an embodiment of the present invention.
FIG. 2 is a view showing an exemplary network configuration according to the instant embodiment. As can be seen in the figure, hosts each implemented as an information processing apparatus having a LAN control function (hereinafter also referred to as the LAN control apparatus) are interconnected to constitute networks. An IPv6 network 2011 and an IPv4 network 2018 are interconnected via an IPv4-to-IPv6 translation router 2012. Connected to the IPv4 network 2018 is a DNS (Domain Name System) server 2017 which is in charge of managing domain names of the IPv4 network 2018 and the IPv6 network 2011. Further connected to the IPv4 network 2018 is a host D 2018 which is compatible with or conforms to an existing IPv4 such as a PC or the like.