IP分类及子网掩码表.pdf

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1、A 类：子网数目 占用位数子网掩码子网中主机数21255128008,388,60642255192004,194,30283255224002,097,15016 4255240001,048,57432 525524800524,28664 625525200262,142128725525400131,070128B 类：子网数目248163264128256C 类：子网数目248168123 4 5 678123 42552550065,534子网掩码子网中主机数255255128032,766255255192016,38225525522408,19025525524004,094

2、25525524802,04625525525201,02225525525405102552552550254子网掩码子网中主机数255255255128126255255255192622552552552243025525525524014占用位数占用位数32 5255255255248664 62552552552522Table.CIDRTable.CIDR 子网表子网表子网掩码子网掩码 CIDRCIDR 名称名称IPIP 数量数量可用可用 IPIP 数量数量C C 类网络的数量类网络的数量1026143062126254510102220464094819016,38232,766

3、65,534131,070262,142524,2861,048,5742,097,1504,194,3028,388,60616,777,21433,554,43067,108,8621/2561/1281/641/321/161/81/4一半1248163264128256512102420484096819216,38432,76865,536131,072262,144/32/31/30/29/28/27/26/25/24/23/22/21/20/19/18/17/16/15/14/13/12/11/10/9/8/7/6/5/4/3124816326412825651210242048

4、4096819216,38432,76865,536131,072262,144524,2881,048,5762,097,1524,194,3048,388,60816,777,21633,554,43267,108,864134,217,728134,217,7261,048,576268,435,456268,435,4542,097,152536,870,912536,870,9104,194,304子网掩码子网掩码 CIDRCIDR 名称名称/2/1IPIP 数量数量可用可用 IPIP 数量数量C C 类网络的数量类网络的数量1,073,741,824 1,073,741,822 8,388,6082,147,483,648 2,147,483,646 16,777,2164,294,967,296 4,294,967,294 33,554,432精心搜集整理，只为你的需要精心搜集整理，只为你的需要0.0.0.0/0