IP和子网掩码对照表

1、IP总数 子网掩码 Amount of a Class C/304段/27 /29 /30网关,子网掩码，广播地址查询范例：要查询，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网络地址可用IP广播地址Network #范围Broadcast.0.127.128.255/26 - 4 Subnets - 62 Hosts/Subnet网络地址可用IP广播地址Network #范围B

2、roadcast.0.63.64.127.128.191.192.255/27 - 8 Subnets - 30 Hosts/Subnet网络地址可用IP广播地址Network #范围Broadcast.0.31.32.63.64.95.96.127.128.159.160.191.192.223.224.255/30 - 64 Subnets - 2 Hosts/Subnet网络地址可用IP广播地址Network #范围Broadcast.0.3.4.7.8.11.12.15.16.19.20.23.24.27.28.31.32.35.36.39.40.43.44.47.48.51.52.5

3、5.56.59.60.63.64.67.68.71.72.75/28 - 16 Subnets - 14 Hosts/Subnet网络地址可用IP广播地址Network #范围Broadcast.0.15.16.31.32.47.48.63.64.79.80.95.96.111.112.127.128.143.144.159.160.175.176.191192.207208.223224.239.240.255/29 - 32 Subnets - 6 Hosts/Subnet网络地址可用IP广播地址Network #范围Broadcast.0.7.8.1516.2324.31.32.39.4

4、0.47.48.55.56.63.64.71.72.79.80.87.88.95.96.103.104.111.76.79.80.83.84.87.88.91.92.95.96.99.100.103.104.107.108.111.112.115.116.119.120.123.124.127.128.131.132.135.136.139.140.143.144.147.148.151.152.155.156.159.160.163.164.167.168.171.172.175.176.179.180.183.184.187.188.191.192.195.196.199.200.203.204.207.208.211.212.215112.119120.127128.135136.143144.151.152.159.160.167.168.175.176.183.184.191.192.199.200.207.208.215.216.223.224.231.232.239.240.247.216.219.