Strange IPv6 reachability problem

[Seth Mattinen]

On 6/19/2011 3:38 PM, Jeroen Massar wrote:
> On 2011-06-20 00:19 , Seth Mattinen wrote:
> [..]
>> I *can not* reach it from a server at my parent's house:
>>
>> source: 2607:fe70:1002:0:202:b3ff:fe30:f633
>> dest: 2001:500:61:28::70
>>
>> PING 2001:500:61:28::70(2001:500:61:28::70) 56 data bytes
>
> I suggest you try this magical tool called 'traceroute' or if available
> tracepath6 it will open your eyes.
>
> traceroute to 2607:fe70:1002:0:202:b3ff:fe30:f633
> [..]
> 14  2607:fe70::4:2 (2607:fe70::4:2)  169.402 ms
> sl-gw34-stk-se10-0-2-out.v6.sprintlink.net (2600:6:300::7)  167.318 ms
> 2607:fe70::4:2 (2607:fe70::4:2)  168.976 ms
> 15  2607:fe70::4:2 (2607:fe70::4:2)  168.145 ms 2607:fe70::a:2
> (2607:fe70::a:2)  170.529 ms 2607:fe70::4:2 (2607:fe70::4:2)  167.835 ms
> 16  2607:fe70::a:2 (2607:fe70::a:2)  169.900 ms  170.066 ms
> 2607:fe70::5:1 (2607:fe70::5:1)  170.408 ms
> 17  2607:fe70::14:2 (2607:fe70::14:2)  175.853 ms 2607:fe70::5:1
> (2607:fe70::5:1)  169.892 ms  169.682 ms
> 18  2607:fe70::14:2 (2607:fe70::14:2)  170.746 ms  175.756 ms  172.394 ms
> 19  2607:fe70:1001::2 (2607:fe70:1001::2)  178.461 ms  178.177 ms *
> 20  2607:fe70:1001::2 (2607:fe70:1001::2)  180.631 ms !N  177.091 ms !N
>   177.261 ms !N
>

Run it with ICMP.

~Seth