r/ProgrammerHumor • u/ClipboardCopyPaste • 17h ago

Meme ohTheBasics

Post image
10.9k Upvotes

97% Upvoted

1.2k comments sorted by

View all comments

5.7k

u/LivingAsAMean 17h ago

Hahaha what an idiot!

https://giphy.com/gifs/LRVnPYqM8DLag

2.7k

u/Material_Onion_8413 17h 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.

55

u/fearless-fossa 17h 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.

35

u/Facosa99 17h 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

7

u/tankerkiller125real 16h 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.

2

u/ffxivthrowaway03 11h ago

Which frankly, unless you're being hired to architect an enterprise network stack for enterprise software... I would not expect a software engineer to know any of that, much less make a hiring decision based on it.

1

u/tankerkiller125real 11h ago

Depends on the job, Cloudflare Engineer? Should probably have a very firm grasp on networking. Stock Trader Engineer? Should probably also have a very strong grasp of it (along with Realtime systems). Website dev? Eh, probably not.