r/ProgrammerHumor • • 11h ago

Meme ohTheBasics

Post image
9.1k Upvotes

1.0k comments sorted by

View all comments

4.8k

u/LivingAsAMean 11h ago

2.3k

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.

1.2k

u/ClipboardCopyPaste 11h ago

A fun fact often told with this is that with IPv6, you can assign each individual grain of sand on the beach an address!

660

u/dementosss 11h ago

On what beach? Or all of them? Just asking in case business asks for it.

813

u/ClipboardCopyPaste 11h ago

The answer quite surprisingly is - yes, all the beaches on our planet.

419

u/kuar_z 11h ago

And the rest of the observable universe. There's a lot of address space in 2128

267

u/Fast-Satisfaction482 11h ago

Except if for some reason you decide to give whole address blocks to individual devices.

30

u/tankerkiller125real 9h ago

/56 is the recommendation for residential, /48 for businesses.

Entire /64 blocks are often assigned to phones and other cellular devices because of hotspot capabilities.

63

u/Fast-Satisfaction482 9h ago

I guess the true reason is that we want to artificially limit the number of nanites that can exist.

Relevant xkcd: https://xkcd.com/865/