某集团公司的网络中心给其一个下属公司分配了一个B级IP子网地址172.20.0.0⼀20。这

您要划分的IP地址是：172.020.000.000 是 B 类IP地址
您要划分的子网数量是 32 个，子网掩码是：255.255.248.000
每段子网的网络号是TO前IP的最后一位减1
每段子网的广播地址是TO后IP最后一位加1
1>172.020.0.1TO172.020.7.254
2>172.020.8.1TO172.020.15.254
3>172.020.16.1TO172.020.23.254
4>172.020.24.1TO172.020.31.254
5>172.020.32.1TO172.020.39.254
6>172.020.40.1TO172.020.47.254
7>172.020.48.1TO172.020.55.254
8>172.020.56.1TO172.020.63.254
9>172.020.64.1TO172.020.71.254
10>172.020.72.1TO172.020.79.254
11>172.020.80.1TO172.020.87.254
12>172.020.88.1TO172.020.95.254
13>172.020.96.1TO172.020.103.254
14>172.020.104.1TO172.020.111.254
15>172.020.112.1TO172.020.119.254
16>172.020.120.1TO172.020.127.254
17>172.020.128.1TO172.020.135.254
18>172.020.136.1TO172.020.143.254
19>172.020.144.1TO172.020.151.254
20>172.020.152.1TO172.020.159.254
21>172.020.160.1TO172.020.167.254
22>172.020.168.1TO172.020.175.254
23>172.020.176.1TO172.020.183.254
24>172.020.184.1TO172.020.191.254
25>172.020.192.1TO172.020.199.254
26>172.020.200.1TO172.020.207.254
27>172.020.208.1TO172.020.215.254
28>172.020.216.1TO172.020.223.254
29>172.020.224.1TO172.020.231.254
30>172.020.232.1TO172.020.239.254
31>172.020.240.1TO172.020.247.254
32>172.020.248.1TO172.020.255.254

掩码为20位的？好大。说明从172.20.0.1-172.20.31.254这一段内的地址都可用

这个是有些不一般呀，分的这个大个儿，很有实力么