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IPv4CP/SP and IPv6 network interworking method and device

An ipv6 network and equipment technology, applied in the field of IPv4 CP/SP and IPv6 network intercommunication, can solve problems such as increasing equipment complexity and cost

Active Publication Date: 2012-10-17
CHINA TELECOM CORP LTD
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Problems solved by technology

At the application proxy gateway, each access request initiated by the user needs to be relayed and converted, real-time stateful mapping needs to be realized, and it works on the application layer, requiring the device to correctly understand the payload content in the IP packet, which greatly Increased equipment complexity and cost

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  • IPv4CP/SP and IPv6 network interworking method and device
  • IPv4CP/SP and IPv6 network interworking method and device
  • IPv4CP/SP and IPv6 network interworking method and device

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Embodiment Construction

[0046] The invention increases the access capability of IPv4 CP / SP at the edge of the IPv6 Internet, so that the IPv4 CP / SP server can provide services to IPv6 users, thereby enriching applications on the IPv6 Internet, improving traffic on the IPv6 Internet, and promoting the development of IPv6.

[0047] The key of the present invention is to deploy a conversion gateway device at the exit of the IDC, that is, the Smart6 gateway, to realize the intercommunication and data packet translation conversion at the IP level, and with the cooperation of the DNS system, the user obtains the IPv6 address through the standard Internet access method Become a pure IPv6 or dual-stack user, and access the CP / SP resources through the IPv6 network and Smart6 gateway. Realize the migration of business traffic from IPv4 to IPv6 network without consuming IPv4 public network addresses. The invention has low reconstruction complexity and low cost.

[0048] The entire device consists of figure 1 ...

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Abstract

The invention provides an IPv4CP / SP and IPv6 network interworking method and device. The method comprises the following steps: an IPv6 client acquires an analyzed and integrated IPv6 address of a CP / SP server from DNS, and sends an access request to the IPv6 address; a gateway acquires an IPv4 address of the CP / SP server according to the IPv6 address; the gateway queries an address mapping table, acquires a private IPv4 address corresponding to the IPv6 client address according to the address mapping table, converts an IPv6 data packet into an IPv4 data packet, and sends the IPv4 data packet to CP / SP; and after CP / SP processes a request from a user, CP / SP returns the IPv4 data packet to the user, and the IPv4 data packet is backward processed by the gateway and then is sent to the IPv6 client. According to the invention, the CP / SP server platform on the existing IPv4 Internet provides services for the users on the IPv6 Internet, thus the traffic on the IPv6 Internet is improved.

Description

technical field [0001] The invention relates to telecommunication and IT application technology, in particular to a method and equipment for interworking between IPv4 CP / SP and IPv6 networks. Background technique [0002] With the rapid development of the Internet, the IPv4 addresses of the top international address allocation organization IANA have been exhausted on February 3, 2011, and the address libraries of global address allocation organizations such as APNIC, RIPE NCC, and ARIN will also be exhausted in about a year. do. [0003] Since the Internet is the basic information facility of human beings, and IP addresses are important resources of the Internet, the exhaustion of addresses will greatly restrict the sustainable development of the Internet and affect the progress of human society. As an alternative technology of the existing Internet protocol IPv4 protocol, IPv6 can provide a huge amount of almost unlimited address resources due to its address length of 128 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
Inventor 解冲锋孙琼刘谦史凡陈运清王茜赵慧玲欧阳宇龙
Owner CHINA TELECOM CORP LTD
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