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My webserver only has an IPv6 address. My provider does not offer any IPv4 addresses. I don't even get a dynamic or temporary IPv4 address.

Is it possible that some users may not be able to reach the website if it does not have an IPv4 address? I fear many people, perhaps on mobile nets for example, will not be able to reach the webserver.

Are there services that offer mapping IPv6 to IPv4 to allow everyone to go through an IPv4 address to reach my IPv6-only server? Is there a solution besides setting up a http/https proxy server at a hoster somewhere else?

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  • IPv4 and IPv6 are completely different, incompatible protocols. There do exist some services that can translate between the two, but it is a crutch that has some problems. There is no way for an IPv6 address (128 bits) to get uniquely translated to an IPv4 address (32 bits). The current answer is to dual-stack anything that needs to run IPv6.
    – Ron Maupin
    Nov 19, 2019 at 23:30
  • fyi, my isp does not support IPv6 yet even if we are near 2020.
    – yagmoth555 ♦
    Nov 19, 2019 at 23:31
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    @yagmoth555-GoFundMeMonica: "It would be disappointing to discover that a service provider has not yet implemented IPv6 at all. That would be a huge red warning flag that the service provider is not innovative when it comes to network technology. If the provider isn’t offering IPv6 services at this stage, it calls into question its prioritization of innovation and whether it is falling behind the competition in other areas." networkworld.com/article/3453336/…
    – Ron Maupin
    Nov 20, 2019 at 5:42
  • @Ron Maupin: Regarding "It would be disappointing to discover that a service provider has not yet implemented IPv6 at all". You would be surprised! Current percentage of private customers in Denmark having an IPv6 address from their ISP? A measily 3.4%. Living in Denmark myself - so I am rather baffled...
    – Lasse Michael Mølgaard
    Nov 23, 2019 at 17:12
  • It may be disappointing, but it is still a fact of life. My provider gives me only IPv6 and I have so far found no one who can access the IPv6 from their mobile and one other person has no IPv6 over their DSL at home.
    – ab0032
    Nov 25, 2019 at 15:05

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People require an IPV6 address or something like a proxy to allow them to see an IPv6 site. IPv4 and IPV6 are different stacks, so it will be the case that users of IPv4 only stacks will not be able to reach your IPv6 only site.

With respect of an alternative to an http/https proxy server at another host, its possible a VPN provider can provide you with an IPv4 address across IPV6 only infrastructure - not sure if thats of much help.

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Okay, apparently the answer is no, not all people have IPv6, some people still have only IPv4 and cannot access a service that is IPv6 only.

One can only hope that will change soon, but I assume it may still take years until all people have IPv6.

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