On Tue, Oct 12, 2021 at 01:01:08PM -0400, Matthew Pounsett <[email protected]> wrote a message of 11 lines which said:
> > This might be a known intermittent IPv6 routing issue with DNSviz, do > > you see this problem for v4 and/or v6 ? > > That would show up as a non-answer over IPv6, rather than an apparent > PMTU/EDNS problem. DNSviz (and similar tools) may wrongly diagnose a PMTU problem if there are random losses. 1) Try with bufsize=4096. No answer, because of a random packet loss. 2) Retry with bufsize=1024. Answer received, therefore it must be a PMTU problem. _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations
