Router Management Table for IPsec Setup Automation
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Solution Overview
Problem
Conventional methods for setting up control parameters for IPsec communications between private and wide-area networks are cumbersome and prone to errors, leading to high processing loads on servers and potential communication disruptions.
Innovation Solution
A communication system where routers maintain a management table with control parameters, allowing for mutual notification and automatic updating of entries, reducing the need for manual setup and minimizing processing loads by distributing the setup process across multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control parameters are manually set up for all routers, then communication security can be established, but the setup process becomes very troublesome and error-prone
Solution Approach 1:
Routers automatically download and apply control parameters from a server without manual intervention. The system enables self-configuration where routers autonomously obtain necessary settings through download requests, eliminating the need for manual setup operations while maintaining secure communications
Solution Approach 2:
Control parameters are centrally managed and copied to multiple routers through download requests. Instead of manually configuring each router individually, the system creates copies of control parameters that are automatically distributed to all routers needing them, ensuring consistency across the network
2Productivity
If numerous routers simultaneously download control parameters from servers, then all routers can be configured, but servers bear very high processing loads
Solution Approach 1:
Control parameters are prepared and stored on servers in advance before routers need them. This preliminary preparation allows routers to quickly download pre-configured parameters without requiring servers to generate and process complex configurations in real-time during simultaneous requests
Solution Approach 2:
The server acts as an intermediary that stores control parameters and distributes them to routers. By serving as a central repository rather than processing each configuration individually, the server can handle multiple simultaneous download requests more efficiently without bearing excessive processing load
3Reliability
If control parameters are manually configured for each router, then communication security is established, but it becomes difficult to identify incorrectly set parameters
Solution Approach 1:
Routers receive feedback from servers regarding the status of control parameter downloads and configurations. This feedback mechanism allows systems to detect and report incorrectly set parameters or download failures, making it easier to identify and correct configuration errors compared to manual setup where errors are difficult to detect
Data Source
AI summary
Encrypted communications are performed between private networks over a wide-area network (e.g., the Internet) by way of routers, each of which includes a management table for storing entries including identifiers and control parameters. Uplink control connections are established between routers so as to mutually communicate and update stored contents of management tables therebetween. Updated stored contents of management tables are subjected to publication to other routers. Alternatively, stored contents of management tables are periodically subjected to publication to other routers. Thus, it is possible for operations managers to reduce manual operations for setting up control parameters in management tables of routers.