| Summary: | 碩士 === 國立中興大學 === 資訊科學系所 === 94 === The allocation of IP address scopes could be dynamic in Multi-homing network environment, as in the case that a user may have many ISPs alternatives. Under such network environment, after allocating IP addresses by the manager, clients can be assigned IP addresses depend on their LAN and ISP. An inappropriate allocation method could result in frequent addresses scopes re-allocation, especially in an unexpected growth of customers. Currently, the modification of IP address scopes is handled manually by experienced engineers, which is time-consuming. In this thesis, we design and implement an adaptive and automatic IP address scopes management system for efficient IP addresses allocation in the Multi-homing network environment. In the system, the dynamic usage of IP addresses in each scope is collected and stored in a database for further analysis. Based on the information of previous usage, an algorithm is developed to predict the future demands of each scope and to identify the scopes which may be altered in the near future. As a fact, the system is able to automatically adjust the allocation of IP address scopes. The experimental results reveal the developed system can reduce the re-allocation time from several tens of minutes to less than 5 minutes per scope adjustment. Through the IP address scopes management system, the frequency of IP scopes replacement can also be effectively reduced.
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