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lohang
2009-03-26 16:58 |
樓主
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x0
你好,本人遇到一條題目是關於ipv6分配 subnet, 內容如下:your company get a global address by ASP which prefix is 3FFA:FF2B:4D:B000::/41. your company has four departments. You have to assign a subnet to each department. In this way, which subnetted address prefix will you assign to the fourth department? A. 3FFA:FF2B:4D:C800::/43 B. 3FFA:FF2B:4D:B400::/43 C. 3FFA:FF2B:4D:C000::/43 C. 3FFA:FF2B:4D:F000::/45 E. None of the above Answer:A 關於subnet那部份我知道為什麼是43, 由於他有4個department, 而2的2次方等於4化成bit等到11,所以他的subnet由41擴充到43. 但是關於header部分,我不知道怎樣分配,例如由分配給第一個department的subnet時候應該是 3FFA:FF2B:4D:xxxx:://43,那個xxxx是怎樣計算呢?我不知道了 我查了很多關於ipv6的網站也没有這方面的知識== x0
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