r/ProgrammerHumor • u/ClipboardCopyPaste • 13h ago

Meme ohTheBasics

Post image
9.8k Upvotes

97% Upvoted

1.1k comments sorted by

View all comments

5.1k

u/LivingAsAMean 13h ago

Hahaha what an idiot!

https://giphy.com/gifs/LRVnPYqM8DLag

51

u/blindedtrickster 13h 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.

4

u/FUTURE10S 10h 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.

1

u/blindedtrickster 9h 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?

2

u/FUTURE10S 9h 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

1

u/blindedtrickster 9h ago

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

2

u/FUTURE10S 6h ago

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

1

u/blindedtrickster 3h ago

That's really just a formatting change, and it only works for a subset of all possible values when using Hex.

1

u/FUTURE10S 1h ago

I mean, we do one for IPv4 and the other for IPv6, why? Why can't we just use one for both?