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常见子网掩码对照表Excel下载(反、正掩码)-数通工程师的傍身笔记
常见子网掩码对照表Excel下载(反、正掩码)-数通工程师的傍身笔记
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2019-04-08 18:33:10
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##常见子网掩码对照表Excel版、Excel下载-数通工程师的傍身笔记 --- | 子网掩码 | 掩码位 | 总IP数 | 可用主机数 | C类网段数量 | | :-------------: | :----: | :--------: | :--------: | :---------: | | 255.255.255.255 | /32 | 1 | 1 | 1/256th | | 255.255.255.254 | /31 | 2 | 0 | 1/128th | | 255.255.255.252 | /30 | 4 | 2 | 1/64th | | 255.255.255.248 | /29 | 8 | 6 | 1/32nd | | 255.255.255.240 | /28 | 16 | 14 | 1/16th | | 255.255.255.224 | /27 | 32 | 30 | 1/8th | | 255.255.255.192 | /26 | 64 | 62 | 1/4th | | 255.255.255.128 | /25 | 128 | 126 | 1 half | | 255.255.255.0 | /24 | 256 | 254 | 1 | | 255.255.254.0 | /23 | 512 | 510 | 2 | | 255.255.252.0 | /22 | 1024 | 1022 | 4 | | 255.255.248.0 | /21 | 2048 | 2046 | 8 | | 255.255.240.0 | /20 | 4096 | 4094 | 16 | | 255.255.224.0 | /19 | 8192 | 8190 | 32 | | 255.255.192.0 | /18 | 16384 | 16382 | 64 | | 255.255.128.0 | /17 | 32768 | 32766 | 128 | | 255.255.0.0 | /16 | 65536 | 65534 | 256 | | 255.254.0.0 | /15 | 131072 | 131070 | 512 | | 255.252.0.0 | /14 | 262144 | 262142 | 1024 | | 255.248.0.0 | /13 | 524288 | 524286 | 2048 | | 255.240.0.0 | /12 | 1048576 | 1048574 | 4096 | | 255.224.0.0 | /11 | 2097152 | 2097150 | 8192 | | 255.192.0.0 | /10 | 4194304 | 4194302 | 16384 | | 255.128.0.0 | /9 | 8388608 | 8388606 | 32768 | | 255.0.0.0 | /8 | 16777216 | 16777214 | 65536 | | 254.0.0.0 | /7 | 33554432 | 33554430 | 131072 | | 252.0.0.0 | /6 | 67108864 | 67108862 | 262144 | | 248.0.0.0 | /5 | 134217728 | 134217726 | 1048576 | | 240.0.0.0 | /4 | 268435456 | 268435454 | 2097152 | | 224.0.0.0 | /3 | 536870912 | 536870910 | 4194304 | | 192.0.0.0 | /2 | 1073741824 | 1073741822 | 8388608 | | 128.0.0.0 | /1 | 2147483648 | 2147483646 | 16777216 | | 0.0.0.0 | /0 | 4294967296 | 4294967294 | 33554432 | --- ##子网掩码反掩码对照表Excel版、Excel下载-数通工程师的傍身笔记 --- | 反掩码 | 掩码位 | 正掩码 | | :-------------: | :----: | :-------------: | | 0.0.0.0 | 32 | 255.255.255.255 | | 0.0.0.1 | 31 | 255.255.255.254 | | 0.0.0.3 | 30 | 255.255.255.252 | | 0.0.0.7 | 29 | 255.255.255.248 | | 0.0.0.15 | 28 | 255.255.255.240 | | 0.0.0.31 | 27 | 255.255.255.224 | | 0.0.0.63 | 26 | 255.255.255.192 | | 0.0.0.127 | 25 | 255.255.255.128 | | 0.0.0.255 | 24 | 255.255.255.0 | | 0.0.1.255 | 23 | 255.255.254.0 | | 0.0.3.255 | 22 | 255.255.252.0 | | 0.0.7.255 | 21 | 255.255.248.0 | | 0.0.15.255 | 20 | 255.255.240.0 | | 0.0.31.255 | 19 | 255.255.224.0 | | 0.0.63.255 | 18 | 255.255.192.0 | | 0.0.127.255 | 17 | 255.255.128.0 | | 0.0.255.255 | 16 | 255.255.0.0 | | 0.1.255.255 | 15 | 255.254.0.0 | | 0.3.255.255 | 14 | 255.252.0.0 | | 0.7.255.255 | 13 | 255.248.0.0 | | 0.15.255.255 | 12 | 255.240.0.0 | | 0.31.255.255 | 11 | 255.224.0.0 | | 0.63.255.255 | 10 | 255.192.0.0 | | 0.127.255.255 | 9 | 255.128.0.0 | | 0.255.255.255 | 8 | 255.0.0.0 | | 1.255.255.255 | 7 | 254.0.0.0 | | 3.255.255.255 | 6 | 252.0.0.0 | | 7.255.255.255 | 5 | 248.0.0.0 | | 15.255.255.255 | 4 | 240.0.0.0 | | 31.255.255.255 | 3 | 224.0.0.0 | | 63.255.255.255 | 2 | 192.0.0.0 | | 127.255.255.255 | 1 | 128.0.0.0 | | 255.255.255.255 | 0 | 0.0.0.0 | [子网掩码、反掩码对照表.xlsx](https://leanote.com/api/file/getAttach?fileId=5cab234fab64415f360079d3)
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