So if I have 10.0.0.0 and i want a subnet mask for 2048 subnets, i do 2^12=4096-2=4094.
Default Subnet mask for a class A address is 11111111.00000000.00000000.00000000 plus the 12 bits I need to borrow, so thats 11111111.11111111.11110000.00000000 which is 255.255.240.0
Can someone confirm?
Greetings!
My son has asked me a question and I would like to impress him by answering it.
How many possible subnets are there in 10.0.0.0/19 and how many useable hosts are there in each subnet? And how the heck do you work it out!
I do remember a bit about subnetting from a job a few years...
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