warthog9Aug 29, 2025

Investigating an ISP up in Canada:

ISP: We do static IP addresses at residential

Me: yay, and I notice you provide IPv6 addresses too, those are static as well if you go static?

ISP: we only provide 1 IPv6 addresses, and there's no such thing as a static IPv6 address

Me: blinks you know that's absolutely not possible right?

ISP: Nope, that's the way it is, no rdns pointers on ipv6 at all

Me: And I assume <ISP> doesn't accept BGP announcements?

ISP: We have no idea what that is

Me: no, no, that answers the question

I'm going to miss my current ISP, they don't do IPv6, but they sure as heck mostly grok how the network works.

Show threadFelix LechnerSep 1, 2025
@warthog9 I think I have the same ISP
Show threadwarthog9Sep 1, 2025

@lechner they aren't uncommon at least. If you've got IPv6 at all you can trivially prove they don't give just one address, they'd give you router an address and a /56 or bigger for subnet usage internally.

I've got a query out with another possible option too

Show threadFelix LechnerSep 1, 2025
@warthog9 Things really changed for me, static IP and all, when my ISP switched to CGNAT.
Show threadwarthog9Sep 1, 2025

@lechner CGNAT is a pox, a curse, and a fundamental failing of the entire flipping internet.

Now, in IPv6 land if only Cogent would get it's head out of it's posterior and actually peer with AS6939 instead of trying to charge them some unholy amount of money everyone would be happier...

Show threadFelix Lechner
@warthog9 My ISP told me that the Cogent story proved I don't need IPv6. Meanwhile, my connection terminates in a local HE data center.
Sep 1, 2025 at 5:30amWeb
Show threadwarthog9Sep 1, 2025

@lechner lol, "don't need", and CGNAT doesnt argue against that strongly?

*Shakes head*