Address translation method and device based on domain name system (DNS)

Abstract

The invention discloses an address translation method and device based on a domain name system (DNS) and relates to the technical field of communications. A new address translation scheme is provided. When an IPv4 / IPv6 dual-stack user has access to IPv4 service resources, the problem that the dual-stack user cannot have access to the IPv4 service resources is solved to some extent, and the capacity of the IPv4 / IPv6 dual-stack user for having access to the service resources is significantly improved. The address translation method includes the steps that after a destination address which a user terminal requests to inquire is acquired, when it is determined that the destination address contains a preset address domain, IP address translation is carried out, an IPv6 address corresponding to the destination address is acquired, and the preset address domain is a destination address set corresponding to the IPv4 service resources supported by an NAT64. The address translation method and device based on the DNS are mainly applied to the IPv4 and IPv6 address translation process.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a DNS (Domain Name System, Domain Name System)-based address conversion method and device. Background technique [0002] Currently, it is in the transition stage from IPv4 (Internet Protocol version4, Internet Protocol version 4) to IPv6 (Internet Protocol version6, Internet Protocol version 6). Enrichment of services and applications is a crucial part of promoting the IPv6 industry chain. Only rich IPv6 service applications can drive the development of IPv6 networks and users. Correspondingly, only when there are many IPv6 users, CP / SP (Content Provider / Service Provider, content provider / service provider) can have the motivation to realize the migration to IPv6. However, there are many problems in the migration of CP / SP to IPv6. First of all, there are many CP / SPs, including large, medium and small, etc., and the types of services they provide are also diverse. ...

AI Technical Summary

Problems solved by technology

However, in the actual implementation process, since all IPv4 / IPv6 dual-stack users receive converted IPv6 addresses, when accessing IPv4 service resources through IPv6 addresses, all service messages must be converted between IPv6 and IPv4. However, the conversion between IPv6 and IPv4 cannot be implemented for a large number of application service packets, resulting in the failure of IPv4 / IPv6 dual-stack users to access IPv4 service resources

Then adopt the above technology to realize that when IPv4 / IPv6 dual-stack users access IPv4 service resources, only a small number of IPv4 service resources can be accessed after IP address conversion, resulting in poor service resource access capabilities of IPv4 / IPv6 dual-stack users

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