Amazing guys, I am sorry if you took my initial message as an attempt to 
diminish anyone's effort. That was definitely not my goal !

It is just extremely difficult to get the real picture because no provider 
gives this info via any public channel. Try googling "provider-of-your-choice 
IPv6 support" and enjoy the lack of results. There is no bad faith from my 
side, just that my personal knowledge is outdated (the last time I touched 
Swisscom RES was November 2020) so this here is an attempt to update it.

Same with public/CG-NAT for v4 -- we, in this group, know more than enough how 
scarce resource this pool is. So not judging anyone here, just saying that 
googling "provider-of-your-choice IPv4 public or cgnat" gives less results than 
we could wish for.

Ultimately what message I am trying to deliver here -- as for today, it's 
almost impossible to know what you get (without asking insiders) when you order 
a residential fiber with provider-of-your-choice.

Cheers and all the best,
Mat

On 11/12/2024 08:32, Egon.Luginbuehl--- via swinog wrote:
> Dear Mat,
> 
>  
> 
> Chris is right in the fact that It’s now been probably around years since 
> Swisscom introduced dual-stack (means native v4 AND v6 addressing) to RES 
> end-customers. We didn’t do so because we would like to shine, but just 
> because infrastructure at that moment both forced AND let us do. 6rd was a 
> quick and dirty way how to “v6-enable” subscribers rapidly, but clearly 
> bandwidth-growth killed this approach even more rapidly 😉.  So, in our 
> organization there is now engineers, who know the term 6rd only from theory – 
> if ever 😉.
> 
> When it comes to public or private IPv4 addressing let me say: We try to give 
> out public addresses whenever we can. But Swisscom too can’t address all the 
> subscribers publicly with the amount of addresses we got years back. This 
> results in the fact that lowest-end (or even VOIP only purpose) products 
> would be CGNATed on IPv4.
> 
>  
> 
> Hope this helps getting you the picture.
> 
>  
> 
> Kind Regards
> 
> Egon
> 
>  
> 
>  
> 
>  
> 
> *From: *Mat Kowalski via swinog <[email protected]>
> *Date: *Tuesday, 10 December 2024 at 16:07
> *To: *[email protected] <[email protected]>
> *Subject: *[swinog] Residential FTTH IPv6
> 
> 
> Be aware: This is an external email.
> 
> 
> 
> Hi all,
> 
> This came up recently when I was talking with some colleagues about 
> residential connections... You know, regular stuff people discuss over a beer 
> or two... We all know Init7 is recognized as The Provider for power users and 
> no one argues with that. But also everyone knows we have mainstream ones 
> kinda-supporting IPv6. Swisscom gives public IPv4 and IPv6 via 6rd tunnel. 
> Similar with Sunrise, but sometimes you end up on CG-NAT. Salt is only 
> CG-NAT, at least according to the anecdotal proofs.
> 
> Power users wouldn't be power if they did not try stuff. So I took my Sunrise 
> FTTH over native fiber (EWZ in my case, not Swisscom BBCS) and it turns out I 
> get public IPv4 from DHCP (expected) as well as IPv6 /56 prefix via DHCPv6 
> (not expected at all). The last one is extremely surprising - the status quo 
> was that you can get IPv6 with Sunrise via 6rd, but DHCPv6 is a novelty. Or 
> is it not?
> 
> What is the state in 2024 ? Who does IPv6 ? Who does it natively ?
> 
> I am surprised there is no single google result about Sunrise doing DHCPv6 so 
> I wonder what we don't know about other ISPs.
> 
> Cheers and have a nice day,
> Mat
> 



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