ip和子网掩码对照表.doc

可用可用 IP 查询查询,IP 段对应表段对应表IP 总数总数子网掩码子网掩码Amount of a Class C/304255.255.255.2521/64/298255.255.255.2481/32/2816255.255.255.2401/16/2732255.255.255.2241/8/2664255.255.255.1921/4/24256255.255.255.01/23512255.255.254.02/221024255.255.252.04/212048255.255.248.08/204096255.255.240.016/198192255.255.224.032/1816384255.255.192.064/1732768255.255.128.0128/1665536255.255.0.0256ip 段段/27 /29 /30 网关网关,子网掩码，广播地址查询子网掩码，广播地址查询范例：范例： 要查询 204.45.116.184/29，先找到下表的 /29 表格，网关 这一列找到要查询的IP 最后一位即.184，然后就可以看到可用 IP 范围（注:第一个 IP 是 Gateway 网关地址）和广播地址了。

然后从上面 的表找到 子网掩码即可/25-- 2 Subnets -- 126 Hosts/Subnet网络地址网络地址Network #可用可用 IP范围范围广播地址广播地址Broadcast.0.1-.126.127.128.129-.254 .255/26-- 4 Subnets -- 62 Hosts/Subnet网络地址网络地址Network #可用可用 IP范围范围广播地址广播地址Broadcast.0.1-.62.63.64.65-.126.127.128.129-.190 .191.192.193-.254 .255/27-- 8 Subnets -- 30 Hosts/Subnet网络地址网络地址可用可用 IP广播地址广播地址/30-- 64 Subnets -- 2 Hosts/Subnet网络地址网络地址Network #可用可用 IP范围范围广播地址广播地址Broadcast.0.1-.2.3.4.5-.6.7.8.9-.10.11.12.13-.14.15.16.17-.18.19.20.21-.22.23.24.25-.26.27.28.29-.30.31.32.33-.34.35.36.37-.38.39.40.41-.42.43Network #范围范围Broadcast.0.1-.30.31.32.33-.62.63.64.65-.94.95.96.97-.126.127.128.129-.158 .159.160.161-.190 .191.192.193-.222 .223.224.225-.254 .255/28-- 16 Subnets -- 14 Hosts/Subnet网络地址网络地址Network #可用可用 IP范围范围广播地址广播地址Broadcast.0.1-.14.15.16.17-.30.31.32.33-.46.47.48.49-.62.63.64.65-.78.79.80.81-.94.95.96.97-.110.111.112.113-.126 .127.128.129-.142 .143.144.145-.158 .159.160.161-.174 .175.176.177-.190 .191.192.193-.206 .207.208.209-.222 .223.224.225-.238 .239.240.241-.254 .255/29-- 32 Subnets -- 6 Hosts/Subnet网络地址网络地址Network #可用可用 IP范围范围广播地址广播地址Broadcast.0.1-.6.7.8.9-.14.15.16.17-.22.23.24.25-.30.31.32.33-.38.39.40.41-.46.47.48.49-.54.55.56.57-.62.63.44.45-.46.47.48.49-.50.51.52.53-.54.55.56.57-.58.59.60.61-.62.63.64.65-.66.67.68.69-.70.71.72.73-.74.75.76.77-.78.79.80.81-.82.83.84.85-.86.87.88.89-.90.91.92.93-.94.95.96.97-.98.99.100.101-.102 .103.104.105-.106 .107.108.109-.110 .111.112.113-.114 .115.116.117-.118 .119.120.121-.122 .123.124.125-.126 .127.128.129-.130 .131.132.133-.134 .135.136.137-.138 .139.140.141-.142 .143.144.145-.146 .147.148.149-.150 .151.152.153-.154 .155.156.157-.158 .159.160.161-.162 .163.164.165-.166 .167.168.169-.170 .171.172.173-.174 .175.176.177-.178 .179.180.181-.182 .183.184.185-.186 .187.188.189-.190 .191.192.193-.194 .195.196.197-.198 .199.64.65-.70.71.72.73-.78.79.80.81-.86.87.88.89-.94.95.96.97-.102.103.104.105-.110 .111.112.113-.118 .119.120.121-.126 .127.128.129-.134 .135.136.137-.142 .143.144.145-.150 .151.152.153-.158 .159.160.161-.166 .167.168.169-.174 .175.176.177-.182 .183.184.185-.190 .191.192.193-.198 .199.200.201-.206 .207.208.209-.214 .215.216.217-.222 .223.224.225-.230 .231.232.233-.238 .239.240.241-.246 .247.200.201-.202 .203.204.205-.206 .207.208.209-.210 .211.212.213-.214 .215.216.217-.218 .219.220.221-.222 .223.224.225-.226 .227.228.229-.230 .231.232.233-.234 .235.236.237-.238 .239.240.241-.242 .243.244.245-.246 .247.248.249-.250 .251.252.253-.254 .255。