[考題] 求助---子網路遮罩問題
例題: IP位址 180.25.21.172 , 子網路遮罩 255.255.192.0
Q: 子網路位址為何 ?
解答: 180.25.0.0
想請問 , 假如 IP位址為 180.25.196.172 , 子網路遮罩不變, 255.255.192.0
請問這時 子網路位址 會是 ??
感謝各位大大 !
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 220.137.74.34
→
03/14 23:12, , 1F
03/14 23:12, 1F
推
03/14 23:12, , 2F
03/14 23:12, 2F
→
03/14 23:14, , 3F
03/14 23:14, 3F
推
03/14 23:17, , 4F
03/14 23:17, 4F
推
03/14 23:18, , 5F
03/14 23:18, 5F
推
03/14 23:34, , 6F
03/14 23:34, 6F
→
03/14 23:40, , 7F
03/14 23:40, 7F
推
03/15 00:00, , 8F
03/15 00:00, 8F
→
03/15 00:09, , 9F
03/15 00:09, 9F
→
03/15 00:14, , 10F
03/15 00:14, 10F
推
03/15 00:24, , 11F
03/15 00:24, 11F
哦~~這麼說應該是
子網路遮罩 11111111,1111111 ,11000000,00000000
ip位址 11001010,0011001 ,11000100,00000000
And
---------------------------------------
11001010,0011001 ,11000000,00000000
所以是 180 , 25 , 192 , 0
這樣對嗎?
感謝大大們指點 !!
※ 編輯: beatfuture 來自: 220.137.74.34 (03/15 00:32)
推
03/15 00:49, , 12F
03/15 00:49, 12F
→
03/15 00:50, , 13F
03/15 00:50, 13F
→
03/15 08:49, , 14F
03/15 08:49, 14F
→
03/15 08:50, , 15F
03/15 08:50, 15F
※ 編輯: beatfuture 來自: 116.59.237.223 (07/10 10:31)