发布网友 发布时间:2022-04-25 10:27
共1个回答
热心网友 时间:2024-08-12 01:52
6个子网,所以至少借用3个主机位,因为2的2此方=4不够,2的3次方=8够。子网掩码为255.255.255.224。
可以划分8个子网 掩码是 255.255.224.0
139.21.0.0-139.21.31.255【未减去网络地址和主机地址】
139.21.32.0-139.21.63.255
139.21.64.0-139.21.95.255
139.21.96.0-139.21.127.255
139.21.128.0-139.21.159.255
139.21.160.0-139.21.191.255
139.21.192.0-139.21.223.255
139.21.224.0-139.21.255.255