> On 12 Feb 2021, at 10:25, Tim Howe <ti...@bendtel.com> wrote:
>
> On Fri, 12 Feb 2021 09:05:51 +1100
> Mark Andrews <ma...@isc.org> wrote:
>
>> Almost everything you buy today works with IPv6. Even the crappy $50 home
>> router does IPv6.
>
> You're testing very different gear than I am. I have not found
> this to be true, and I look harder than most.
>
> I put every new CPE I come across, high-end and low-end,
> against our auto-config dual-stack setup to see how well they work with
> v6. Our setup is fairly simple: dhcp v4, dhcp v6 with /56 PD
> I also test with static IP configs (/30 or /31 v4, /127 v6 with routed /56 or
> /48)
>
> devices seem to fall into many different categories:
>
> * Just works. I think I have fewer than 5 tested devices that land here.
> Some of them only after I reported bugs and managed to get fixes
> (these are my favorite vendors).
> * almost just works; minor bugs that can be worked around if you research how
> * works if configured a very specific way, but not without ISP cooperation
> * can be made to work if you are an expert who will go past the normal
> interface.
> * works when static, but requires extra help and knowledge to get working
> with
> dynamic config or just doesn't
> * allows you to configure it as if it would work, but doesn't;
> sometimes works at first but fails over time (I do long-term stability
> testing).
> * doesn't even pretend to work (even if the packaging claims support)
> * doesn't work. Doesn't claim to. No plans to make it work. Stop asking
> us.
>
> More surprising is that having a big name or being a no-name is
> no indication of what category you will fall into. Juniper SRX needs
> a little help due to known bug, for example. Another nice, big-name
> device starts by sending a malformed packet to my dhcpv6 server and
> just fails before getting out of the gate. Ubiquiti ERx was a nice
> surprise as far as functionality and configurability, but no support in
> the GUI.
>
> Support is non-existent in SMX solutions even from the biggest
> names. This is often a surprise to them when I point it out.
>
> I'm convinced most people claiming IPv6 support is common
> haven't actually tried it with many devices. We support v6 one way or
> another on all our Internet services, but it has been a chore, to put it
> mildly. CPE hasn't even been the biggest problem.
>
> —TimH
Well I’m glad you are testing so you don’t distribute garbage to your customers.
I wish more ISPs would do more of it.
There is also plenty of garbage on the IPv4 side as well.
Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org