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Phillip Remaker
Is there any way to get the source IPv6 address of the failing probes? Or at least the prefix? I am especially interested to know if the failing devices posses 6to4 or Teredo addresses, or are otherwise behind a router serviced by a poorly maintained or unpredictable IPv6 tunnel. I would suggest that any probes reporting 6to4 or Teredo addresses be prohibited from participating in IPv6 test measurements. It would be useful to conduct further research on the failing probes and adjust the probe firmware accordingly.