Examples:
Try these without a calculator. Answers at the bottom. ip subnetting from zero to guru pdf
(Answers: 1) 10.0.0.0, 2) 14, 3) /22 gives 1022 hosts, 64 subnets, 4) 192.168.1.39, 5) A=10.0.0.0/19, B=10.0.8.0/21, C=10.0.16.0/23) Examples: Try these without a calculator
If you got all five, congratulations – you are no longer zero. You are a guru. (Answers: 1) 10
Instead of splitting, you combine. If you have four contiguous /24 networks (192.168.0.0/24, /1, /2, /3), you can advertise them as one /22. This shrinks routing tables – a core skill for internet backbone engineers.