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Small exercise -- subnet division and summary
2022-07-01 17:56:00 【It's a cinch!】
1. 192.168.1.0 255.255.255.128 Divided into 4 Subnet
2. 172.16.10.0 255.255.254.0 Divided into 4 Subnet
3. 201.1.0.0 255.255.255.0 Divided into 2 Subnet
4. 10.0.20.0 255.255.254.0 Divided into 8 Subnet
5. 202.1.0.0 255.255.254.0 Divided into 4 Subnet
6. 202.16.17.0 255.255.255.192 Divided into 4 Subnet
7. 10.0.0.0 255.255.0.0 Divided into 4 Subnet
8. 213.19.40.0 255.255.248.0 Divided into 4 Subnet
9. 192.168.20.0/24 192.168.21.0/24 192.168.22.0/24 192.168.23.0/24 192.168.24.0/24
Conduct network Summary
10. 10.100.1.16.0/24 100.1.17.0/24 100.1.18.0/24 100.1.19.0/24 Network summary
1. 192.168.1.0 255.255.255.128 Divided into 4 Subnet
1100 0000.1001 1000.0000 0000.0XX0 0000
1111 1111 . 1111 1111 .1111 1111 . 1110 0000 Subnet mask
1100 0000.1010 1000.0000 0001.0000 0000——192.168.1.0 255.255.255.224
Range ：192.168.1.1-192.168.1.30 (30:2^5-1-1;5: Subnet mask host bits ）
1100 0000.1010 1000.0000 0001.0010 0000——192.168.1.32 255.255.255.224
Range ：192.168.1.33-192.168.1.62 （32+30）
1100 0000.1010 1000.0000 0001.0100 0000——192.168.1.64 255.255.255.224
Range ：192.168.1.65-192.168.1.94
1100 0000.1010 1000.0000 0001.0110 0000——192.168.1.96 255.255.255.224
Range ：192.168.1.97-192.168.1.126
2. 172.16.10.0 255.255.254.0 Divided into 4 Subnet
1010 1100.0001 0000.0000 101X.X000 0000
1111 1111 . 1111 1111 .1111 1111. 1000 0000 Subnet mask
1010 1100.0001 0000.0000 1010.0000 0000——172.16.10.0 255.255.255.128
Range ：172.16.10.1 - 172.16.10.126 （2^7-1-1;7: Subnet mask host bits ）
1010 1100.0001 0000.0000 1010.1000 0000——172.16.10.128 255.255.255.128
Range ：172.16.10.129 - 172.16.10.254
1010 1100.0001 0000.0000 1011.0000 0000——172.16.11.0 255.255.255.128
Range ：172.16.11.1 - 172.16.11.126
1010 1100.0001 0000.0000 1011.1000 0000——172.16.11.128 255.255.255.128
Range ：172.16.11.129- 172.16.11.254
3. 201.1. 0.0 255.255.255.0 Divided into 2 Subnet
1100 1001.0000 0001.0000 0000.X000 0000
1111 1111 . 1111 1111 .1111 1110. 1000 0000 Subnet mask
1100 1001.0000 0001.0000 0000.0000 0000——201.1. 0.0 255.255.255.128
Range ：201.1. 0.1 - 172.16.10.126
1100 1001.0000 0001.0000 0000.1000 0000——201.1. 0.128 255.255.255.128
Range ：201.1. 0.129 - 172.16.10.254
4. 10.0.20.0 255.255.254.0 Divided into 8 Subnet
0000 1010.0000 0000.0001 010X.XX00 0000
1111 1111 .1111 1111 . 1111 1111 . 1100 0000 Subnet mask
0000 1010.0000 0000.0001 0100.0000 0000——10.0.20.0 255.255.255.192
Range ：10.0.20.1 - 10.0.20.62
0000 1010.0000 0000.0001 0100.0100 0000——10.0.20.64 255.255.255.192
Range ：10.0.20.65 - 10.0.20.126
0000 1010.0000 0000.0001 0100.1000 0000——10.0.20.128 255.255.255.192
Range ：10.0.20.129 - 10.0.20.190
0000 1010.0000 0000.0001 0100.1100 0000——10.0.20.192 255.255.255.192
Range ：10.0.20.193 - 10.0.20.254
0000 1010.0000 0000.0001 0101.0000 0000——10.0.21.0 255.255.255.192
Range ：10.0.21.1 - 10.0.21.62
0000 1010.0000 0000.0001 0101.0100 0000——10.0.21.64 255.255.255.192
Range ：10.0.21.65 - 10.0.21.126
0000 1010.0000 0000.0001 0101.1000 0000——10.0.21.128 255.255.255.192
Range ：10.0.21.129 - 10.0.21.190
0000 1010.0000 0000.0001 0101.1100 0000——10.0.21.192 255.255.255.192
Range ：10.0.21.193 - 10.0.21.254
5. 202.1.0.0 255.255.254.0 Divided into 4 Subnet
1100 1010.0000 0001.0000 000X.X000 0000
1111 1111 . 1111 1111 .1111 1111. 1000 0000 Subnet mask
1100 1010.0000 0001.0000 0000.0000 0000——202.1.0.0 255.255.255.128
Range ：202.1.0.1 - 202.1.0.126
1100 1010.0000 0001.0000 0000.1000 0000——202.1.0.128 255.255.255.128
Range ：202.1.0.129 - 202.1.0.254
1100 1010.0000 0001.0000 0001.0000 0000——202.1.1.0 255.255.255.128
Range ：202.1.1.1 - 202.1.1.126
1100 1010.0000 0001.0000 0001.1000 0000——202.1.1.128 255.255.255.128
Range ：202.1.1.129 - 202.1.1.254
6. 202.16.17.0 255.255.255.192 Divided into 4 Subnet
1100 1010.0001 0000.0001 0001.00XX 0000
1111 1111 . 1111 1111 .1111 1111. 1111 0000 Subnet mask
1100 1010.0001 0000.0001 0001.0000 0000——202.16.17.0 255.255.255.240
Range ：202.16.17.1 - 202.16.17.14
1100 1010.0001 0000.0001 0001.0001 0000——202.16.17.16 255.255.255.240
Range ：202.16.17.17 - 202.16.17.30
1100 1010.0001 0000.0001 0001.0010 0000——202.16.17.32 255.255.255.240
Range ：202.16.17.33 - 202.16.17.46
1100 1010.0001 0000.0001 0001.0011 0000——202.16.17.48 255.255.255.240
Range ：202.16.17.49 - 202.16.17.62
7. 10.0.0.0 255.255.0.0 Divided into 4 Subnet
0000 1010.0000 0000.XX00 0000.0000 0000
1111 1111 . 1111 1111 . 1100 0000.0000 0000 Subnet mask
0000 1010.0000 0000.0000 0000.0000 0000——10.0.0.0 255.255.192.0
Range ：10.0.0.1 - 10.0.0.16382
0000 1010.0000 0000.0100 0000.0000 0000——10.0.64.0 255.255.192.0
Range ：10.0.64.1 - 10.0.64.16382
0000 1010.0000 0000.1000 0000.0000 0000——10.0.128.0 255.255.192.0
Range ：10.0.128.1 - 10.0.128.16382
0000 1010.0000 0000.1100 0000.0000 0000——10.0.192.0 255.255.192.0
Range ：10.0.192.1 - 10.0.192.16382
8. 213.19.40.0 255.255.248.0 Divided into 4 Subnet
1101 0101.0001 0011.0010 1XX0.0000 0000
1111 1111 . 1111 1111 . 1111 1110 . 0000 0000 Subnet mask
1101 0101.0001 0011.0010 1000.0000 0000——213.19.40.0 255.255.254.0
Range ：213.19.40.1 - 213.19.40.510
1101 0101.0001 0011.0010 1010.0000 0000——213.19.42.0 255.255.254.0
Range ：213.19.42.1 - 213.19.42.510
1101 0101.0001 0011.0010 1100.0000 0000——213.19.44.0 255.255.254.0
Range ：213.19.44.1 - 213.19.44.510
1101 0101.0001 0011.0010 1110.0000 0000——213.19.46.0 255.255.254.0
Range ：213.19.46.1 - 213.19.46.510
9. 192.168.20.0/24 192.168.21.0/24 192.168.22.0/24 192.168.23.0/24 192.168.24.0/24
Conduct network Summary
192.168.20.0/24 1100 0000.1010 1000.0001 0100.0000 0000
192.168.21.0/24 1100 0000.1010 1000.0001 0101.0000 0000
192.168.22.0/24 1100 0000.1010 1000.0001 0110.0000 0000
192.168.23.0/24 1100 0000.1010 1000.0001 0111.0000 0000
192.168.24.0/24 1100 0000.1010 1000.0001 1000.0000 0000
result 192.168.16.0 /20
10. 10.100.1.16.0/24 100.1.17.0/24 100.1.18.0/24 100.1.19.0/24 Network summary
100.1.16.0/24 0110 0100.0000 0001.0001 0000.0000 0000
100.1.17.0/24 0110 0100.0000 0001.0001 0001.0000 0000
100.1.18.0/24 0110 0100.0000 0001.0001 0010.0000 0000
100.1.19.0/24 0110 0100.0000 0001.0001 0011.0000 0000
result 100.1.16.0 /22
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