目前網路環境中,已普遍使用可變IP前置碼(又稱可變長度子網路)的技術,以提升網路位址空間的使用率。然而其概念有牽涉邏輯概念及數學的計算,對初學者而言是有些困難的。為提升學生對可變IP前置碼的了解,本論文發展多張Excel工作表,以流程為觀念來陳述可變IP前置碼的概念及計算,提升學生學習的效果。
In the current network environment, variable IP prefixes (variable length subnet) technology has been widely used for increasing the utilization of the network address space. However, the variable IP prefixes involves logical concepts and mathematical calculations; therefore, it is difficult for beginners to understand. In order to enhance students’ understanding of variable IP prefixes, this paper develops several EXCEL worksheets for the students’ learning.