61.190.3.29 网络位是30 那它的子网掩码是多少还有138.1.80.6网络位是20

答案:2 悬赏:10

解决时间 2021-01-18 21:38

提问者网友：太高姿态
2021-01-18 10:09

最佳答案

二级知识专家网友：第四晚心情
2021-01-18 10:32

61.190.3.29 网络位是30那么就表示它的前30位为网络号，所以子网掩码为255.255.255.252在这个子网中只有两个可用的IP地址。把最后一段转换成二进制为00011101加粗部分连同前面的为网络号，转换成十进制为61.190.3.28既为网络号。广播地址就是把主机位全置1所以广播地址为00011111（最后一段）十进制为61.190.3.31 同理138.1.80.6网络位是20的子网掩码为255.255.240.0网络号为138.1.80.0广播地址为138.1.95.255

全部回答

1楼网友：拜訪者
2021-01-18 10:38

您要划分的IP地址是：128.001.000.000 是 B 类IP地址
您要划分的子网数量是 120 个，子网掩码是：255.255.254.000
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> 128.001.0.1 TO 128.001.1.254
2> 128.001.2.1 TO 128.001.3.254
3> 128.001.4.1 TO 128.001.5.254
4> 128.001.6.1 TO 128.001.7.254
5> 128.001.8.1 TO 128.001.9.254
6> 128.001.10.1 TO 128.001.11.254
7> 128.001.12.1 TO 128.001.13.254
8> 128.001.14.1 TO 128.001.15.254
9> 128.001.16.1 TO 128.001.17.254
10> 128.001.18.1 TO 128.001.19.254
11> 128.001.20.1 TO 128.001.21.254
12> 128.001.22.1 TO 128.001.23.254
13> 128.001.24.1 TO 128.001.25.254
14> 128.001.26.1 TO 128.001.27.254
15> 128.001.28.1 TO 128.001.29.254
16> 128.001.30.1 TO 128.001.31.254
17> 128.001.32.1 TO 128.001.33.254
18> 128.001.34.1 TO 128.001.35.254
19> 128.001.36.1 TO 128.001.37.254
20> 128.001.38.1 TO 128.001.39.254
21> 128.001.40.1 TO 128.001.41.254
22> 128.001.42.1 TO 128.001.43.254
23> 128.001.44.1 TO 128.001.45.254
24> 128.001.46.1 TO 128.001.47.254
25> 128.001.48.1 TO 128.001.49.254
26> 128.001.50.1 TO 128.001.51.254
27> 128.001.52.1 TO 128.001.53.254
28> 128.001.54.1 TO 128.001.55.254
29> 128.001.56.1 TO 128.001.57.254
30> 128.001.58.1 TO 128.001.59.254
31> 128.001.60.1 TO 128.001.61.254
32> 128.001.62.1 TO 128.001.63.254
33> 128.001.64.1 TO 128.001.65.254
34> 128.001.66.1 TO 128.001.67.254
35> 128.001.68.1 TO 128.001.69.254
36> 128.001.70.1 TO 128.001.71.254
37> 128.001.72.1 TO 128.001.73.254
38> 128.001.74.1 TO 128.001.75.254
39> 128.001.76.1 TO 128.001.77.254
40> 128.001.78.1 TO 128.001.79.254
41> 128.001.80.1 TO 128.001.81.254
42> 128.001.82.1 TO 128.001.83.254
43> 128.001.84.1 TO 128.001.85.254
44> 128.001.86.1 TO 128.001.87.254
45> 128.001.88.1 TO 128.001.89.254
46> 128.001.90.1 TO 128.001.91.254
47> 128.001.92.1 TO 128.001.93.254
48> 128.001.94.1 TO 128.001.95.254
49> 128.001.96.1 TO 128.001.97.254
50> 128.001.98.1 TO 128.001.99.254
51> 128.001.100.1 TO 128.001.101.254
52> 128.001.102.1 TO 128.001.103.254
53> 128.001.104.1 TO 128.001.105.254
54> 128.001.106.1 TO 128.001.107.254
55> 128.001.108.1 TO 128.001.109.254
56> 128.001.110.1 TO 128.001.

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61.190.3.29 网络位是30 那它的子网掩码是多少 还有138.1.80.6网络位是20

61.190.3.29 网络位是30 那它的子网掩码是多少还有138.1.80.6网络位是20