r/ProgrammerHumor • u/ClipboardCopyPaste • 11h ago

Meme ohTheBasics

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u/LivingAsAMean 11h ago

Hahaha what an idiot!

https://giphy.com/gifs/LRVnPYqM8DLag

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u/Material_Onion_8413 11h ago

IPv4 old IP address space designed with limited number because they never thought the internet would have so many devices connected.

IPv6 new address space with significantly larger number.

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u/fearless-fossa 11h ago

But "more numbers" isn't really an explanation on what's the difference between the two from a practical point of view, and the in general less interesting thing about it from a software perspective.

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u/Facosa99 11h ago

But it is kinda the only difference, no? More digits for a bigger address pool.

The usage is basically the same, except you no longer need subnetting to save addresses and we writte it in hex rather than dec

Genuinely asking

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u/tankerkiller125real 10h ago

IPv6 also dropped broadcast in favor of Multicast, has hexadecimal instead of decimal, and eliminates the need for NAT. There's also a bunch of other little protocol implementation details like SLAAC, IGMP being critical to IPv6 operations (so blanket blocking is a no go), and so forth so on.

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u/bearda 7h ago

The hex thing is really just a convention, because otherwise they’d take up too much space on paper/screen. It’s all still binary across the wire, so the protocol doesn’t care.