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Cannot reach one specific IPv6 from one specific network (self.sysadmin)

submitted 2 years ago by TwinTurbo to c/sysadmin

9 comments fedilink hide all child comments

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

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[–] TwinTurbo 3 points 2 years ago

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