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IPv4 and IPv6 compatible domain name resolution method and system

A domain name resolution system and domain name resolution technology, applied in transmission systems, electrical components, etc., can solve problems such as reducing communication efficiency and wasting precious resources of NAT-PT gateways, and achieve the effect of improving communication efficiency

Active Publication Date: 2014-06-25
GCI SCI & TECH
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  • Claims
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Problems solved by technology

As a result of this choice, two nodes that could have communicated directly under the same protocol environment have to communicate through the NAT-PT gateway, which not only reduces the communication efficiency, but also wastes the precious resources of the NAT-PT gateway.

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  • IPv4 and IPv6 compatible domain name resolution method and system
  • IPv4 and IPv6 compatible domain name resolution method and system

Examples

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0019] Such as figure 1 As shown, it is a schematic flow diagram of a domain name resolution method for IPv4 and IPv6 intercommunication of the present invention in a preferred embodiment, including the following steps:

[0020] S11. The DNS-ALG receives the query message sent by the DNS server of the source host, and sends the query message to the DNS server of the destination host;

[0021] In the transitional network environment, if a node in the IPv6 network wants to establish a connection with an IPv4 network node or vice versa, if an IPv4 network node wants to establish a connection with an IPv6 node, it must first obtain the IP address of the other party through DNS query, and then go through DNS-ALG conversion into a format understood by nodes;

[0022] When a node...

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Abstract

The invention provides an IPv4 and IPv6 compatible domain name resolution method. The IPv4 and IPv6 compatible domain name resolution method includes the following steps: receiving a query message sent by a DNS server of a source host, sending the query message to a DNS server of a destination host, receiving a response message returned by the DNS server of the destination host after domain name resolutions are successfully carried out on the query message or an error message returned by the DNS server of the destination host after the domain name resolutions are failed, and if the error message is received, conducting format modification on resource record types of the query message according to networking protocols, and sending the resource record types after the format modification to the DNS server of the destination host. The networking protocols include the IPv4 protocol and the IPv6 protocol. The invention further provides a corresponding system, and the network communication efficiency can be remarkably improved.

Description

technical field [0001] The present invention relates to the field of Internet technology, in particular to a domain name resolution method for intercommunication between IPv4 and IPv6, and a domain name for intercommunication between IPv4 (Internet Protocol 4, Internet Protocol Version 4) and IPv6 (Internet Protocol 6, Internet Protocol Version 6) Analysis system. Background technique [0002] Currently, the data network is dominated by IPv4 technology. With the expansion of network scale, IPv6 technology will gradually replace the current IPv4 technology with its huge address space and other advantages. However, such a thorough replacement requires a long-term process. In this long-term evolution process from IPv4 to IPv6, in order to share network resources, it is necessary to solve the problem of intercommunication between IPv4 network and IPv6 network. To this end, IETF (Internet Engineering Task Force, Internet Engineering Task Force) proposed a series of transition t...

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 杨峰李朗张会锋
Owner GCI SCI & TECH
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