What would be ip address range for connecting to 3000 devices on your network?
2^n ~= 3000 n = 12
ip range: 172.16.0.0/20
subnet mask: 11111111.11111111.11110000.00000000
255.255.240.0
What would be ip address range for connecting to 100000 devices on your network
2^n ~= 100000 n = 17
ip range: 10.0.0.0/15
subnet mask: 11111111.11111110.00000000.00000000
255.254.0.0
Generally we would not work with one complete network, we try to break network into smaller sub networks and these smaller networks are called as subnets.
Networks and Subnets
Lets try to create subnets from a network
network ip range: 192.168.0.0/16
subnet mask: 255.255.0.0
network id: 192.168
size = 65000
lets try to create a subnet which can connect to 200 devices
2^n ~= 200 n = 8
ip range: 192.168.0.0/24
subnet mask: 255.255.255.0
network id 192.168.0
size = 250
lets create two more subnets which can connect 200 devices each
192.168.00000001.00000000
subnet 2: 192.168.1.0/24
192.168.00000010.00000000
subnet 3: 192.168.2.0/24
Lets try to create subnets from a network
network ip range: 10.10.0.0/16
subnet mask: 255.255.0.0
now lets create two subnets which can connect to 1000 devices
2^n ~= 1000 n = 10
ip address: 10.10.0.0/22
subnet mask = 11111111.11111111.11111100.00000000
= 255.255.252.0
ip address: 10.10.4.0/22
subnet mask = 11111111.11111111.11111100.00000000
Lets create subnets (subnet1, subnet2) which can connect to 200 and 500 devices
ip address range: 172.16.0.0/16
subnet mask: 255.255.0.0
subnet1 : 172.16.0.0/24
2^n ~= 200 n = 8
subnet2:
2^n ~= 500 n = 9
172.16.0000001 0.00000000 => 172.16.2.0/23
255.255.254.0
Try to calculate subnet cidr ranges for the office network shown below