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@petertwise
Created October 18, 2017 01:57
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Cheat Sheet for IP Address "wildcards" CIDR Notation - Subnet Mask
# These are the only common ones ever used...
# If you need a reference for anything inbetween these: https://tools.ietf.org/html/rfc4632#page-7
123.456.0.0/8 = 123.*.*.*
123.456.0.0/16 = 123.456.*.*
123.456.789.0/24 = 123.456.789.*
123.456.789.012/32 = 123.456.789.012
@rajithwijepura
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123.456.0.0/8
Where does 456 come up on IPv4 IP address?

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