Example:
IP: 128.42.5.4
In binary: 10000000 00101010 00000101 00000100
Subnet: 255.255.248.0
How could you determine the prefix, network, subnet, and host numbers?
128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 1 - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001 Example Network=192.168.1.0 /24; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.0 Ip address range 192.168.1.0----192.168.1.255 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.254; Broadcast address = 192.168.1.255; 254 Host ******************************************************************************** Network=192.168.1.0 /25; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.128 Ip address range 192.168.1.0----192.168.1.128 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.126; Broadcast address = 192.168.1.127; 126 Hosts ******************************************************************************** When the CIDR increased ex. /24. /25. the network will divided by the binary number. /25 increase network 0-128| 128- 256 | you will have 2 Networks /26 increase network 0-64 | 64 - 128 | 128-192 | 192-256 you will have 4 Networks . . . /32......