Mobile Terminal IPv6 Address Notification to Access Router
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Solution Overview
Problem
In IPv6-based wireless networks, mobile terminals automatically configure IP addresses, but access routers may not be aware of these addresses, leading to network operational issues due to the lack of notification and management.
Innovation Solution
A method and mobile terminal that perform duplicate address detection (DAD) and transmit a notification message to the access router, including the automatically-configured IPv6 address, allowing the router to validate and manage the IP address, ensuring its reliability and usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If mobile terminals automatically configure IPv6 addresses using stateless auto-configuration method, then IP address allocation is simplified and automated, but the access router becomes unaware of the configured addresses leading to network management issues
Solution Approach 1:
The mobile terminal sends a notification message to the access router after performing duplicate address detection, providing feedback about the configured IP address. This ensures the router becomes aware of the address while maintaining the automation benefits of stateless auto-configuration.
Solution Approach 2:
The mobile terminal performs duplicate address detection before using the automatically configured IP address. This preliminary action prevents address conflicts while maintaining automation, and the detection result is then communicated to the router.
2Device complexity
If mobile terminals use stateless auto-configuration method, then network management complexity is reduced, but duplicate IP addresses may be allocated causing network operational problems
Solution Approach 1:
The mobile terminal performs duplicate address detection as a preliminary action before finalizing IP address usage. This detects potential conflicts early while maintaining the simplicity of stateless auto-configuration.
Solution Approach 2:
The notification message provides feedback to the access router about the duplicate address detection results, enabling the router to manage IP address conflicts while maintaining low network management complexity.
3Reliability
If access router manages all IP addresses, then network control is improved, but the system requires complex stateful management mechanisms
Solution Approach 1:
The patent extracts the IP address management function from the access router by using stateless auto-configuration. The router no longer needs to maintain stateful management of all IP addresses, reducing complexity while retaining network control through notification-based awareness.
Data Source
AI summary
A mobile terminal and method of notifying an access router of an Internet protocol (IP) address of the mobile terminal in a wireless network are provided where a mobile terminal notifies an access router of an IP address of the mobile terminal, performing duplicate address detection (DAD) with respect to an automatically-configured IP address are performed, and a notification message including the IP address resulting from the performing of the DAD are transmitted to the access router. The access router is notified by using the notification message. The mobile terminal uses the IP address, based on whether there is a response with respect to the notification message transmitted to the access router after the performing of the DAD.