Method of translating protocol at translator, method of providing protocol translation information at translation server, and address translation server
First Claim
1. A translator connected to a first network for transferring data in a first protocol and a second network for transferring data in a second protocol, the translator connected to a translation server connected to the first network and the second network and a third network for transferring data in the first protocol, and to a first terminal which has moved from the third network to the first network, and to a second terminal in the second network, the translation server being connected to another translator, which is connected to the second network and the third network, comprising:
- an interface for receiving a packet from the first terminal according to the first protocol, and sending the packet to the second terminal according to the second protocol, whereinthe translator sends a translation informing query to the translation server upon receiving the packet from the first terminal, receives translation information from the translation server, updates an address of the first terminal in the translation information using a source address in the packet, and translates a destination address of the packet according to the translation information before sending the packet to the second terminal,the translation information in the translation server is sent from said another translator, andthe translation information is exchanged between the translator and said another translator via the translation server.
1 Assignment
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Accused Products
Abstract
A translator is connected to a first network for transferring data in a first protocol, to a second network for transferring data in a second protocol, and to a translation server to which other translators are connected, for retaining translation information for a protocol translation between the first protocol and the second protocol. The translator generates a second address in the first protocol corresponding to a first address in the second protocol provided to a terminal accommodated in the second network. It retains a correspondence between the first address and the second address as the translation information and registers the correspondence at the translation server.
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Citations
8 Claims
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1. A translator connected to a first network for transferring data in a first protocol and a second network for transferring data in a second protocol, the translator connected to a translation server connected to the first network and the second network and a third network for transferring data in the first protocol, and to a first terminal which has moved from the third network to the first network, and to a second terminal in the second network, the translation server being connected to another translator, which is connected to the second network and the third network, comprising:
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an interface for receiving a packet from the first terminal according to the first protocol, and sending the packet to the second terminal according to the second protocol, wherein the translator sends a translation informing query to the translation server upon receiving the packet from the first terminal, receives translation information from the translation server, updates an address of the first terminal in the translation information using a source address in the packet, and translates a destination address of the packet according to the translation information before sending the packet to the second terminal, the translation information in the translation server is sent from said another translator, and the translation information is exchanged between the translator and said another translator via the translation server. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A translator connected to a first network for transferring data in a first protocol and a second network for transferring data in a second protocol, the translator connected to a translation server connected to the first network and the second, and to a first terminal which has moved within the first network, and to a second terminal in the second network, the translation server being connected to another translator, which is connected to the second network and the third network, comprising;
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an interface for receiving a packet from the first terminal, and sending the packet to the second terminal;
whereinthe translator sends a translation information query to the translation server upon receiving the packet from the first terminal, and receives translation information from the translation server, updates an address in the translation information using a source address in the packet, and translates a destination address of the packet according to the translation information before sending the packet to the second terminal, the translation information in the translation server is sent from said another translator, and the translator does not exchange the translation information directly with said another translator. - View Dependent Claims (8)
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Specification