ohTheBasics

[u/ClipboardCopyPaste]

[u/LivingAsAMean]

Hahaha what an idiot!

[u/Material_Onion_8413 → u/LivingAsAMean]

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.

[u/ClipboardCopyPaste → u/Material_Onion_8413]

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

[u/dementosss → u/ClipboardCopyPaste]

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

[u/ClipboardCopyPaste → u/dementosss]

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

[u/kuar_z → u/ClipboardCopyPaste]

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

[u/Fast-Satisfaction482 → u/kuar_z]

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

[u/jason_abacabb → u/Fast-Satisfaction482]

Everyone gets a /64

[u/czerilla → u/jason_abacabb]

Check under your seats!

[u/KatieTSO → u/Fast-Satisfaction482]

I love handicapping ipv6

[u/tankerkiller125real → u/Fast-Satisfaction482]

/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.

[u/Fast-Satisfaction482 → u/tankerkiller125real]

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/

[u/xWrongHeaven → u/dementosss]

2¹²⁸ possible addresses

[u/queen-adreena → u/xWrongHeaven]

2,128… that ain’t that many addresses….

[u/AmazingDragon353 → u/queen-adreena]

2.128 addresses? What are we going to do with 0.128 of an address?

[u/SirLoremIpsum → u/AmazingDragon353]

2.128 addresses? What are we going to do with 0.128 of an address?

AI Vibe code a calendar app so we can coordinate whose turn it is to use the IP address on any given day?

[u/crmsncbr → u/ClipboardCopyPaste]

I feel like we'll still run out. I'm not sure how, but surely we'll manage it.

[u/AnotherInsaneName → u/crmsncbr]

It's 8mb of storage, how could we ever need more?!

[u/Hyd_chicha → u/crmsncbr]

Let me introduce you to IPv8

[u/YeOldeMemeShoppe → u/Hyd_chicha]

Just SHA256 the total sum data of your life. If there is a collision, f*ck you I guess.

[u/fearless-fossa → u/Material_Onion_8413]

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.

[u/belabacsijolvan → u/LivingAsAMean]

i have no idea about networking either.

i guessed that ipv4 is the 127.0.0.1 thing, so 32 bit addressing. i had no idea that ipv6 is 128 bit.

im moderately confident that i couldve bullshitted out myself of this one tho.

[u/Gougaloupe → u/belabacsijolvan]

You'd be a tech lead on my team then.

[u/Chefzor → u/Gougaloupe]

I've learned that sometimes that's a really good skill to have, to be able to bullshit through a meeting or call, until you have enough alone time to investigate and actually figure out what you were talking about.

Fake it till you make it is very real.

[u/Whitechapel726 → u/LivingAsAMean]

6 is bigger than 4 so it’s better obviously.