This is weird. Back in December, I got IPv6 enabled for a while, at least that's what most IPv6 checkers such as http://test-ipv6.com/ said. I was even a bale to connect to the IPv6-only sites that were linked from that page.
But since 2/3 weeks ago, it looks like it's gone, since the IPv6 checkers say "You appear to have no IPv6 address."

Does this make any sense, or am I looking at the wrong place?

Question to users who successfully got ipv6 in HO network - are you able to ping/access your devices from Internet by ipv6?

Yes, of course. That's pretty much the core design principle of the IPv6 protocol

In reply to a post by pedrovski:

Yes, of course. That's pretty much the core design principle of the IPv6 protocol

Thanks a lot, because their CS said that I can't get access to devices from internet due to "Although the IPv6 is static, you wouldn't be able to access it from the internet as it's a security feature".

Are you using HO router or your own?

For security most routers that do IPv6 will have a firewall running, so even if you have a public IPv6 address unsolicited inbound traffic is usually blocked

i.e.

A user on BT will NOT be able to ping you computers IPv6 address even if a public IPv6 one.
You using your computer should be able to the ping IPv6 servers that have their ping response exposed though.

Ok, so looks like conversation is moving towards - whether HO customers should be able to setup firewall rules for ipv6 as they can do it for ipv4 (at least current HO router allows to switch between 3 cats of protection and allow ipv4 pings and most traffic with Low settings).

Otherwise (for me) hiding any ipv6 settings from customers in provided equipment is an attempt to force people into paying £5/month for static ipv4 to be able to be visible from outside. ZTE H298A/N from manufacturer has much more settings available, which are hidden in HO routers.

I believe there are two separate aspects in play here.

I'm referring to one - whether the IPv6 Prefix Delegation assigned by HO to their customers is fully routable or not.

Other posts are referring to another - whether there may be a firewall policy of some sort in play.

Regards the routable aspect, the IPv6 PD assigned to customers by HO (at least, to me) is fully routable. There is no impediment put in place by HO at the IPv6 routing layer to impede access to your IPv6 allocation from the Internet. So, if you are using your own router and want to access your IPv6 PD from the Internet, you should be able to do so.

A seperate issue is that there may be a firewall policy on whatever router you are using that blocks access to your IPv6 PD from the Internet. I don't use the HO router, but other posts here suggest they may well block this by default. I would argue that this is the correct and sensible option for a consumer oriented service. If you don't want that, you can always use your own router instead

I hope that's a bit clearer.