Subnetting & CIDR

Calculating IP ranges, netmasks, and understanding routing prefixes.

CIDR Notation

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Classless Inter - Domain Routing(CIDR) replaced the old Class A / B / C system.

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256 IPs

< p class= "text-xs text-zinc-600" > Standard Home Network

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65, 536 IPs

< p class= "text-xs text-zinc-600" > Mid - size Corporation

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16 Million IPs

< p class= "text-xs text-zinc-600" > Ancient Internet Giants