dane.sys4.net IPv6 problem

[Jens Link]

> Is there any reason for blocking AWS IPv6?

I don't think that AWS is blocked but IPv6 prefixes > 32 are. I have the
same problem with my mail server which is an /48 PI.

Your IP is announced by AWS in a /38:

# sh ipv6 route 2a05:d018:76d:5af6:d050:9b30:6bf7:df98
  Routing entry for 2a05:d018:400::/38
  Known via "bgp", distance 20, metric 0, best
    Last update 04w0d01h ago
    * fe80::e6aa:5dff:fe82:e001, via eth0

And as a general tip:

Use a TCP variant of traceropute, newer version have -T option for
this and also try tracepath(6) so see if there are any MTU issuse.

Jens
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