20 Jan
2018
20 Jan
'18
2:16 p.m.
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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