6to4 strangeness

[Bernhard Schmidt]

David Malone wrote:

>> This means that for them, or rather, their 6to4 gateway, my  
>> 2001:1af8::/32 address is unreachable, but 3ffe:2500::/32 works. WTF?
> Whois shows the IPv4 address 66.235.180.107 belongs to HopOne
> Internet. They have a traceroute server which I used to traceroute
> to 192.88.99.1. It looks like the route currently leads to
> teleport-iabg.de. Is there anyone from there on this list who could
> check their route back to 2001:1af8::/32?

Great, that is one of mine, once across the galaxy^Watlantic ocean. I 
can reach Iljitsch just fine though:

traceroute to 2001:1AF8:6:0:204:27FF:FEFE:249F 
(2001:1af8:6:0:204:27ff:fefe:249f) from 2001:1b10:100:3::1:2, 30 hops 
max, 16 byte packets
  1  backbone2-gige-0-3-15.teleport-iabg.de (2001:1b10:100:3::12)  0.815 
ms  0.751 ms  0.733 ms
  2  mchn-s1-rou-1030.DE.eurorings.net (2001:680:0:800f::a)  1.73 ms 
1.785 ms  1.985 ms
  3  mchn-s2-rou-1030.DE.eurorings.net (2001:680::134:222:84:80)  3.493 
ms  1.781 ms  1.862 ms
  4  ge-2-0-0-100-zcr2.muc.cw.net (2001:5000:0:3::2)  2.107 ms  2.509 ms 
  2.005 ms
  5  as0-bcr2.fra.cw.net (2001:5000:0:5::1)  7.746 ms  7.611 ms  7.607 ms
  6  ge-0-0-0-100-bcr1.fra.cw.net (2001:5000:0:13::1)  8.228 ms  7.84 ms 
  7.98 ms
  7  so-3-0-0-zpr1.dcx.cw.net (2001:5000:0:77::2)  8.463 ms  8.381 ms 
8.115 ms
  8  6b1.fft4.alter.net (2001:7f8::319e:0:1)  10.98 ms  11.328 ms  11.983 ms
  9  tu1.6B2.AMS7.ALTER.NET (2001:600:1::1)  24.579 ms  26.747 ms  24.46 ms
10  Leaseweb-ipv6.customer.alter.net (2001:600:8:6::2)  32.716 ms 
26.422 ms  27.463 ms
11  2001:1af8:1:195:250:73ff:fe6f:7109 
(2001:1af8:1:195:250:73ff:fe6f:7109)  26.33 ms  25.302 ms  25.945 ms
12  2001:1af8:2:6::2 (2001:1af8:2:6::2)  36.455 ms  39.024 ms  36.08 ms

I have to see how I can get Versatel to drop this prefix on 
transatlantic peerings, but it should still work. Iljitsch already asked 
for a traceroute in their forum today

http://forum.osx86project.org/index.php?showtopic=9072

maybe we can see something more then.

Regards,
Bernhard