[atlas] No address in the results when ping or traceroute fail?

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