So I was adding IP address ranges to AWS and ones I was adding had `/20` and `/16` on them. I realise this has an effect on the range, but I don’t understand what effect.
Part of the IP address stays the same and the other part(s) don’t.
Can someone explain what this means?
In: 9
Previous comments do a good job for the ELI5. For further googling it’s helpful to know that this is called CIDR notation.
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