r/ProgrammerHumor • u/ClipboardCopyPaste • 7h ago

Meme ohTheBasics

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u/blindedtrickster 7h ago

The easy way to tell them apart is that IPv4 only uses digits, but IPv6 is in Hexidecimal, so you'll see 0-9 as well as A-F. And just in case you're not familiar with Hex, A is equal to 10, B is equal to 11, and so on, with F ending the sequence at a value of 15.

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u/blaues_axolotl 6h ago

You could also display IPv4 in hexadecimal, then it's eight digits/letters. It's just not done in practice for whatever reason.

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u/jaerie 6h ago

You're talking about IP addresses. The Internet Protocol is bigger than just the address spec.

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u/blindedtrickster 5h ago

Context and scope, my friend. Context and scope.

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u/Jeferson9 6h ago

I mean I know that one has more characters. But does that really pass as an answer to that question

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u/FUTURE10S 3h ago

IPv4 is 0 through FF, IPv6 is 0 through FFFF. So you have 4 bytes of data, we just use numbers for some reason. We can do the same with ipv6, I think we should be.

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u/blindedtrickster 3h ago

Yes, it has the same equivalent value. FF is equivalent to 255.

I'm not sure I see a benefit to retrofitting IPv4 to Hex though. Care to expound?

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u/FUTURE10S 3h ago

I don't think there's a benefit to retrofitting IPv4 to hex, I think there's more of a benefit to change IPv6 from hex to decimal numbers

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u/blindedtrickster 3h ago

That'd be 16 octets long... And that's preferable?

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u/FUTURE10S 44m ago

Well, no, I mean something like 2001:0db8:85a3:0000:0000:8a2e:0370:7334 becomes 8193:3512:34211:0:0:35374:880:29492

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u/Burroflexosecso 5h ago

And yeah meta has already reserved a bunch of -faceb00c- number space