News for hackers. Stuff that matters.

A comment on IPv6 Traffic Crosses the 50% Mark for the First Time. Parent comment

Re:IPv6 Traffic Crosses the 50% Mark for the First Time by GoblinSlayer on Thursday April 16, 2026 @11:42AM (#47794984)
If a single machine gets /64 and you rate limit by /64, what doesn't work?

>Linode and others that do /64 for a whole data center

That's how it's supposed to work.

[ Parent | on HN ]
Re:IPv6 Traffic Crosses the 50% Mark for the First Time by Dylan16807 on Thursday April 16, 2026 @02:52PM (#47797809)
> That's how it's supposed to work.

According to who?

It could fit best practices if your datacenter has one tenant and they want to put the entire thing on a single subnet? In general I would expect a datacenter to get something like a /48 minimum. Even home connections are supposed to get more than /64 allocated.

And Linode's default setup only gives each server a single /128. That's not how it's supposed to work. But you can request /64 or /56.

[ Parent | on HN ]
Re:IPv6 Traffic Crosses the 50% Mark for the First Time by GoblinSlayer on Thursday April 16, 2026 @03:33PM (#47798366)
If the OS uses SLAAC by default, then it will just work, but SLAAC is for humans and makes less sense for web servers (yet can make sense for vpn servers). For web servers /128 is more meaningful.
[ Parent | on HN ]