[MC-212438] IPv4 preferred over IPv6

When Minecraft connects to a server using a domain name it will connect to IPv4 address even when a IPv6 address is available. Minecraft works with IPv6. This prevents servers from going dual stack.

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Comments 4

wobst.michael 2021-01-22T17:46:14Z

-Djava.net.preferIPv6Addresses=true sort of fixes this. Ideally Minecraft would do AAAA then A out of the box.

Adrian Östergård 2021-01-29T08:26:13Z

This is a feature request.

hex 2021-01-29T08:49:05Z

Are you going to implementing it then?

ziggurism 2021-02-05T10:16:46Z

This issue also has a discussion at reddit where there is disagreement whether Michael Wobst's solution of setting -Djava.net.preferIPv6Addresses=true is a fix,that will break in the same way for IPv4-only hosts, with a link to the jdk discussion at the JDK bugtracker

IPv4 preferred over IPv6

Linked issues

clones 1

is duplicated by 2

relates to 2

Comments 4