Address-conflict detection realizing method and address conflict detection agent apparatus

Abstract

Address collision detection proxy is setup on side of WiMAX network based on MIPv6. When having no address being stored, the proxy stores the address, which is sent from first user terminal, to be used in administered network. The proxy determines whether the address, which is sent from subsequent user terminal, to be used in administered network conflicts to the address already stored by self so as to accomplish collision detection process for address sent from the user terminal. When ensuring that the proxy does not detect collision for address sent by self, the user terminal sends the address to the proxy to store, and collision detection process is executed right along. The invention can carry out DAD process for link-local address or CoA address obtained by user terminal in WiMAX network system based on MIPv6, and saves resources of aerial interface.

Description

technical field [0001] The invention relates to the technical field of applying mobile IPv6 in a WiMAX network system, in particular to a method for implementing address conflict detection and an address conflict detection proxy device. Background technique [0002] Although the Internet communication technology with Internet Protocol Version 4 (IPv4, IP version4) as the core technology has achieved great success, the further development of IP technology applications is directly limited due to the shortage of IPv4 address resources. Due to the rapid development of mobile communication technology and broadband technology, the demand for IP addresses has increased sharply. In order to solve the problem of the shortage of IP address resources, existing technologies have also proposed Classless Inter-Domain Routing (CIDR, Classless Inter Domain Routing). ), Network Address Translation (NAT, Network Address Translation), mixed addresses and other technologies, but these technolog...

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Problems solved by technology

[0026] At present, only the concept of HoAProxy DAD is recorded in the WiMAX "050915_NWG_STAGE2.doc" document, but the relevant process of performing Proxy DAD for the CoA address is not recorded, so the specific implementation method of performing Proxy DAD for the CoA address is not yet available, so When the MSS uses the Stateless Auto-configuration mechanism or the Stateful Auto-configuration mechanism to obtain CoA address-related information in the foreign network, if the uniqueness of the link-local address generated during the process cannot be guaranteed on the local link of the current network, It will make the Stateless / StatefulAuto-configuration mechanism unable to proceed normally

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