[atlas] No address in the results when ping or traceroute fail?
Klaus Darilion klaus.darilion at nic.at
Tue Jul 23 11:12:21 CEST 2013
On 22.07.2013 16:39, Stephane Bortzmeyer wrote: > On Mon, Jul 22, 2013 at 04:29:52PM +0200, > Philip Homburg <philip.homburg at ripe.net> wrote > a message of 23 lines which said: > >> The probe didn't actually send any packets so there is no point in >> knowing the source address that wasn't used. :-) > I wanted to reply to Dan Wing's criticism > <https://labs.ripe.net/Members/stephane_bortzmeyer/how-many-atlas-probes-believe-they-have-ipv6-but-are-wrong/> > "I have a suspicion that many of these failures are IPv6 tunnels that > have suffered bit rot. Could you analyze the IPv6 address that the > Atlas probe thinks it has and split them into two categories: (a) > known tunnels (e.g., Hurricane Electric, SixXS, 6to4, Teredo) versus > (b) presumably "native" IPv6 addresses. " Yes, this is annoying. Many probes have IPv6 tunnels. Probably they show the "real world" view of IPv6, but often I am interested in native IPv6. When selecting probes manually I only use probes that are located in the same AS for IPv4 and IPv6. regards Klaus