6to4 - can't ping 192.88.99.1?

Pascal Hambourg wrote:
> See <http://www.6to4.your.org/> too. I remember that Your.org's 6to4
> relay router once had a firewall issue which was quicky solved thanks to
> a cooperation between my ISP and Your.org.

I want to thank you again for your help. Indeed, it took only a single
mail to your.org to get this issue fixed.


Incidentally, I have no issues reaching www.kame.net:

aschuring@neminis:~$ traceroute6 www.kame.net
traceroute to www.kame.net (2001:200:0:8002:203:47ff:fea5:3085), 30 hops
max, 80 byte packets
1 2002:d594:e6a3:1::1 (2002:d594:e6a3:1::1) 0.412 ms 0.961 ms 1.043 ms
2 2002:c058:6301:: (2002:c058:6301: 28.015 ms 28.956 ms 29.902 ms
3 stf.ge-0.0.0-33.core1.ams.bb6.your.org (2001:4978:2:410::ffff)
31.593 ms 32.498 ms 35.421 ms
4 ams-ix.he.net (2001:7f8:1::a500:6939:1) 41.483 ms 42.298 ms 43.505 ms
[...]
15 orange.kame.net (2001:200:0:8002:203:47ff:fea5:3085) 285.262 ms
286.495 ms 287.664 ms


Many thanks,
Arno

Arno Schuring a écrit :
>
> I want to thank you again for your help. Indeed, it took only a single
> mail to your.org to get this issue fixed.

Good news. Did they explain what the problem was ?

> Incidentally, I have no issues reaching www.kame.net:

Indeed it also works for me now. So this connectivity issue with 6to4
addresses was solved too. Another good news.

Pascal Hambourg wrote:
>
> [snip]
>
> Note that from my experience, www.kame.net appears to be one of the few
> sites which is unfortunately not reachable using 6to4. However from the
> lack of reply at the second hop, it seems that your were correct about
> the faulty 6to4 relay or routing.
>
>> Hmm... that's too bad. So I have no way to confirm either the validity
>> of my ISP's routes, or test the reachability of the 6to4 gateway?
>
> [snip]

It's been *my* experience that www.kame.net is _the_ most reliably
reachable site by 6to4. Getting the turtle to dance is pretty much the
standard test that IPv6 works.