Self-hosted Docker IPv6 Forwarding Support

(#825) Bug Needs triage self-hosting

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Comment by @Yamada993
RexSystem 1 vote originally by @Yamada993 on GitHub OP
Just need to modify the "network" section of the docker compose file, and you can see the real IPv6 address of the user.
networks:
  fluxer:
    driver: bridge
    enable_ipv6: true
    ipam:
      config:
        - subnet: fd12:3456:789a:1::/64