A. What is the network portion of these addresses?
▪ 177.100.18.4
▪ 119.18.45.0
▪ 209.240.80.78
▪ 199.155.77.56
▪ 117.89.56.45
▪ 215.45.45.0
▪ 192.200.15.0
▪ 95.0.21.90
▪ 33.0.0.0
▪ 158.98.80.0
▪ 217.21.56.0
▪ 10.250.1.1
▪ 150.10.15.0
▪ 192.14.2.0
▪ 148.17.9.1
▪ 193.42.1.1
▪ 126.8.156.0
▪ 220.200.23.1
B. What is the host portion of these
addresses?
▪ 10.15.123.50
▪ 171.2.199.31
▪ 198.125.87.177
▪ 223.250.200.222
▪ 17.45.222.45
▪ 126.201.54.231
▪ 191.41.35.112
▪ 155.25.169.227
▪ 192.15.155.2
▪ 123.102.45.254
▪ 148.17.9.155
▪ 100.25.1.1
▪ 195.0.21.98
▪ 25.250.135.46
▪ 171.102.77.77
▪ 55.250.5.5
▪ 218.155.230.14
▪ 10.250.1.1
II. Network address and host address
A. Using the IP address and subnet mask
shown write out the network address:
o 188.10.18.2
255.255.0.0
o 10.10.48.80
255.255.255.0
o 192.149.24.191
255.255.255.0
o 150.203.23.19
255.255.0.0
o 10.10.10.10
255.0.0.0
B. Using the IP address and subnet mask
shown write out the host address:
o 188.10.18.2
255.255.0.0
o 10.10.48.80
255.255.255.0
o 222.49.49.11
255.255.255.0
o 128.23.230.19
255.255.0.0
o 10.10.10.10
255.0.0.0�
A. The network portion of the addresses are as follows:
- 177.100.18.4 -> 177.100.18
- 119.18.45.0 -> 119.18.45
- 209.240.80.78 -> 209.240.80
- 199.155.77.56 -> 199.155.77
- 117.89.56.45 -> 117.89.56
- 215.45.45.0 -> 215.45.45
- 192.200.15.0 -> 192.200.15
- 95.0.21.90 -> 95.0.21
- 33.0.0.0 -> 33.0.0
- 158.98.80.0 -> 158.98.80
- 217.21.56.0 -> 217.21.56
- 10.250.1.1 -> 10.250.1
- 150.10.15.0 -> 150.10.15
- 192.14.2.0 -> 192.14.2
- 148.17.9.1 -> 148.17.9
- 193.42.1.1 -> 193.42.1
- 126.8.156.0 -> 126.8.156
- 220.200.23.1 -> 220.200.23
B. The host portion of the addresses are as follows:
- 10.15.123.50 -> 123.50
- 171.2.199.31 -> 199.31
- 198.125.87.177 -> 87.177
- 223.250.200.222 -> 200.222
- 17.45.222.45 -> 222.45
- 126.201.54.231 -> 54.231
- 191.41.35.112 -> 35.112
- 155.25.169.227 -> 169.227
- 192.15.155.2 -> 155.2
- 123.102.45.254 -> 45.254
- 148.17.9.155 -> 9.155
- 100.25.1.1 -> 1.1
- 195.0.21.98 -> 21.98
- 25.250.135.46 -> 135.46
- 171.102.77.77 -> 77.77
- 55.250.5.5 -> 5.5
- 218.155.230.14 -> 230.14
- 10.250.1.1 -> 1.1
II. Network address and host address
A. The network address is the result of performing a bitwise AND operation between the IP address and subnet mask.
- 188.10.18.2 with subnet mask 255.255.0.0 -> Network address: 188.10.0.0
- 10.10.48.80 with subnet mask 255.255.255.0 -> Network address: 10.10.48.0
- 192.149.24.191 with subnet mask 255.255.255.0 -> Network address: 192.149.24.0
- 150.203.23.19 with subnet mask 255.255.0.0 -> Network address: 150.203.0.0
- 10.10.10.10 with subnet mask 255.0.0.0 -> Network address: 10.0.0.0
B. The host address is obtained by subtracting the network address from the IP address.
- 188.10.18.2 with subnet mask 255.255.0.0 -> Host address: 0.0.18.2
- 10.10.48.80 with subnet mask 255.255.255.0 -> Host address: 0.0.48.80
- 222.49.49.11 with subnet mask 255.255.255.0 -> Host address: 0.0.49.11
- 128.23.230.19 with subnet mask 255.255.0.0 -> Host address: 0.23.230.19
- 10.10.10.10 with subnet mask 255.0.0.0 -> Host address: 0.10.10.10