cross-posted from: https://lemmy.world/post/224140

My home ISP does CGNAT for IPv4, but provides native IPv6. I can use IPv6 just fine to access most of my resources, except for one specific server. I can access the server over IPv4 from my home network, and either over v4 or v6 from other networks I’ve tried. But I can’t access it over IPv6 from my home network.

What could be the problem here? Where do I begin to diagnose it

  • kinther@lemmy.world
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    1 year ago

    Check your ip address config on the destination server. Does it have a public ipv6 address assigned? Does your server routing table have a default route for that ipv6 network? Does your firewall only allow ipv4?

    • TwinTurbo@lemmy.worldOP
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      1 year ago

      Yes, I can reach the IPv6 on the server from other networks. I don’t think it’s a firewall issue.