Method and apparatus for dynamically allocating IPv4 public address through an IPv6 Internet

Abstract

The embodiment of the invention provides a method and apparatus for dynamically allocating an IPv4 public address through an IPv6 Internet. The method comprises the following steps: receiving a request of obtaining the IPv4 public address sent by a user terminal, wherein the request carries a user identifier and a time period of the user to use the IPv4 public address; if an unallocated IPv4 public address resource exists, extracting a target IPv4 public address from the IPv4 public address resource, and generating a target address carrying an IPv6 prefix mark; allocating the target address tothe user terminal corresponding to the user identifier, starting the timing, and when the timing time length is within the time period, accessing, by the user terminal, the IPv4 network via the IPv6network according to the target address. The device performs the above method. By adoption of the method and apparatus for dynamically allocating the IPv4 public address through the IPv6 Internet provided in the embodiment of the invention, the utilization rate of the IPv4 public address resource can be improved, thereby ensuring the interconnection and intercommunication of the IPv4 network and the IPv6 network in the transitional phase.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication technology, and in particular to a method and device for dynamically allocating IPv4 public addresses through the IPv6 Internet. Background technique [0002] With the rapid development of Internet technology, the number of global IPv4 users has also increased sharply, which also highlights a series of serious problems of IPv4, including insufficient address space and routing scalability issues. [0003] The IPv6 protocol is the next-generation Internet protocol and is used to replace IPv4. IPv6 has a huge address space (2^128), hierarchical addressing and routing mechanisms, better security and mobility support and other features. However, in the future, IPv6 and IPv4 will coexist for a long time. In order to make IPv6 compatible with IPv4, that is, to realize the interconnection between IPv6 network and IPv4 network, IPv4 public addresses are needed, and IPv4 public addres...

AI Technical Summary

Problems solved by technology

However, in the future, IPv6 and IPv4 will coexist for a long time. In order to make IPv6 compatible with IPv4, that is, to realize the interconnection between IPv6 network and IPv4 network, IPv4 public addresses are needed, and IPv4 public addresses are extremely scarce resources. , the existing technology has a low utilization rate of IPv4 public address resources, thus affecting the interconnection between IPv4 network and IPv6 network

Images