The reason IPv6 was originally added to the DOCSIS specs, over 20 years ago, is because Comcast literally exhausted all RFC1918 addresses on their modem management networks.

My favourite feature of IPv6 is networks, and hosts therein, can have multiple prefixes and addresses as a core function. I use it to expose local functions on only ULA addresses, but provide locked down public access when and where needed. Access separation is handled at the IP stack, with IPv4 it’s expected to be handled by a firewall or equivalent.

[–] Bytemeister@lemmy.world 29 points 1 day ago (3 children)

My favorite feature of IPv6 is that there are so many addresses available. Every single IPv4 address right now could have its own entire IPv4 range of addresses in IPv6. It's mind-boggling huge.

[–] gnuplusmatt@reddthat.com 16 points 1 day ago* (last edited 1 day ago) (2 children)

you could assign every square meter of the planet an ip and use it for location, and still have addresses left over

[–] SpaceCadet@feddit.nl 2 points 1 day ago* (last edited 1 day ago)

square centimeter is the one I heard

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