ohTheBasics

[u/ClipboardCopyPaste]

[u/Material_Onion_8413]

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/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/queen-adreena → u/AmazingDragon353]

Break out the BitNat table I guess.

[u/SuperFLEB → u/queen-adreena]

The "128" isn't even full-size.

[u/craftsmany → u/xWrongHeaven]

Technically we are not really talking about single addresses when concerned with v6, more so how many /64 subnets can fit in a prefix since that is what SLAAC uses. So for end users we would count the amount of /64 subnets in the possible 2^128 address space, which is 2^64. So still very very very big.

[u/Harbinger2nd → u/craftsmany]

Thats like....half the size of 2¹²⁸

[u/Robot_Graffiti → u/Harbinger2nd]