I have to split up a network into 11 subnetworks, and then those networks must be split up further.
With the address 136.192.0.0\16:
I found that I have 2^(32-16) = 65,536 available addresses.
I can make 11 groups of 4,096 addresses.
I then get 20 as the subnet mask prefix.
I end up with the following 11 IP Addesses, one for each network.
Network ID Subnet Mask
138.192.16.0 255.255.240.0 or \20
138.192.32.0 255.255.240.0 or \20
138.192.48.0 255.255.240.0 or \20
138.192.64.0 255.255.240.0 or \20
138.192.80.0 255.255.240.0 or \20
138.192.96.0 255.255.240.0 or \20
138.192.112.0 255.255.240.0 or \20
138.192.128.0 255.255.240.0 or \20
138.192.144.0 255.255.240.0 or \20
138.192.160.0 255.255.240.0 or \20
138.192.176.0 255.255.240.0 or \20
The first network address is 138.192.16.0\20 I need to split this address into 5 further subnets.
I have 2^(32-20) = 4096 addresses available with the \20 subnet mask
If I split it up into 5 groups thats 4096/5 = 819.2 but we have to round
that to a multiple of 2, so we get 5 groups of 512
Because 9 bits are for the host, that means 23 are for the network
That gives me 255.255.254.0 for the subnet mask.
This is as far as I've gotten beause I am unsure how to proced with producing these 5 Network ID's. Im also uncertain if I'm doing it right.
I did find this resource How do you calculate the prefix, network, subnet, and host numbers? But am unsure of what its doing when subnetting.