[gutvol-w] Project Gutenberg site not working over IPv6 tunnel

Paul Tow macskeeball at gmail.com
Fri Jul 29 20:00:49 PDT 2016

For a long while now, a technical issue with the Project Gutenberg website has been making it completely inaccessible to a large number of Internet users. The only people that can access the site are people that either have an IPv4 address *only* or have a *native* IPv6 address. Anyone using an IPv6 tunnel cannot connect to the website. Many ISPs automatically configure customer equipment to use an IPv6 tunnel, so there are large swathes of people using IPv6 tunnels who have never heard of IPv6 and don’t know how to turn it off or use a VPN. To these people, your site has appeared to down for months/years, and it does not appear to be a DNS problem.

Please stop filtering ICMPv6 traffic, so that more people can connect, access your ebooks, and possibly even donate or volunteer.

An IPv6 tunnel is an intermediary gateway server that allows IPv4-equipped machines to be assigned IPv6 addresses and thus connect to the IPv6 portion of the Internet.

- https://en.wikipedia.org/wiki/IPv6
- https://www.google.com/intl/en/ipv6/
- http://www.worldipv6launch.org/
- Forum thread I started to figure out this issue with Project Gutenberg: https://www.reddit.com/r/ipv6/comments/4v8ncz/project_gutenberg_not_working_over_ipv6/

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