Question

Consider a router that has the following IP address: 122.169.6.1/23. Which of the following are valid IPaddresses for hosts attached to this router?​

Answer 1

Answer:

122.168.6.2

122.169.6.23

122.169.7.23

122.169.7.200

Explanation:

Address:   122.169.6.1           01111010.10101001.0000011 0.00000001

Netmask:   255.255.254.0 = 23    11111111.11111111.1111111 0.00000000

Wildcard:  0.0.1.255             00000000.00000000.0000000 1.11111111

=>

Network:   122.169.6.0/23        01111010.10101001.0000011 0.00000000 (Class A)

Broadcast: 122.169.7.255         01111010.10101001.0000011 1.11111111

HostMin:   122.169.6.1           01111010.10101001.0000011 0.00000001

HostMax:   122.169.7.254         01111010.10101001.0000011 1.11111110

Hosts/Net: 510