子网掩码计算器

子网, 有效的主机, 广播地址 172.16.8.0 , 172.16.8.1 到 172.16.11.254 , 172.16.11.255 172.16.12.0 , 172.16.12.1 到 172.16.15.254 , 172.16.15.255 172.16.16.0 , 172.16.16.1 到 172.16.19.254 , 172.16.19.255 172.16.20.0 , 172.16.20.1 到 172.16.23.254 , 172.16.23.255 172.16.24.0 , 172.16.24.1 到 172.16.27.254 , 172.16.27.255 172.16.28.0 , 172.16.28.1 到 172.16.31.254 , 172.16.31.255 172.16.32.0 , 172.16.32.1 到 172.16.35.254 , 172.16.35.255 172.16.36.0 , 172.16.36.1 到 172.16.39.254 , 172.16.39.255 172.16.40.0 , 172.16.40.1 到 172.16.43.254 , 172.16.43.255 172.16.44.0 , 172.16.44.1 到 172.16.47.254 , 172.16.47.255 172.16.48.0 , 172.16.48.1 到 172.16.51.254 , 172.16.51.255 172.16.52.0 , 172.16.52.1 到 172.16.55.254 , 172.16.55.255 172.16.56.0 , 172.16.56.1 到 172.16.59.254 , 172.16.59.255 172.16.60.0 , 172.16.60.1 到 172.16.63.254 , 172.16.63.255 172.16.64.0 , 172.16.64.1 到 172.16.67.254 , 172.16.67.255 172.16.68.0 , 172.16.68.1 到 172.16.71.254 , 172.16.71.255 172.16.72.0 , 172.16.72.1 到 172.16.75.254 , 172.16.75.255 172.16.76.0 , 172.16.76.1 到 172.16.79.254 , 172.16.79.255 172.16.80.0 , 172.16.80.1 到 172.16.83.254 , 172.16.83.255 172.16.84.0 , 172.16.84.1 到 172.16.87.254 , 172.16.87.255