[afripv6-discuss] Internet broken - v6 :-(

[Frank Habicht]

On 9/9/2007 4:33 PM, Alain Patrick AINA wrote:
>> my internet is broken. (maybe few days now) and below are the reasons i
>> send this to the v6 list.
> 
>> gentooserver ~ # traceroute6 www.isc.org
>> traceroute to www.isc.org (2001:4f8:0:2::d) from
>> 2002:c1dc:3a1b:1:20a:e6ff:fef0:a2b3, 30 hops max, 16 byte packets
>>  1  2002:c1dc:3a1b:1:219:6ff:fe22:ed48
>> (2002:c1dc:3a1b:1:219:6ff:fe22:ed48)  0.809 ms  0.712 ms  0.572 ms
>>  2  2002:c058:6301:: (2002:c058:6301::)  608.218 ms *  603.301 ms
>>  3  ssc-stk-px.occaid.net (2001:4830:d0::2)  584.238 ms *  653.467 ms
>>  4  2002:c058:6301:: (2002:c058:6301::)  554.441 ms  595.575 ms  588.404 ms
>>  5  ssc-stk-px.occaid.net (2001:4830:d0::2)  596.315 ms  576.923 ms
>> 587.58 ms
>>  6  2002:c058:6301:: (2002:c058:6301::)  556.329 ms  615.539 ms *
>>  7  ssc-stk-px.occaid.net (2001:4830:d0::2)  574.396 ms  823.758 ms
>> 615.745 ms
> 
> You are tracing from a 6to4(2002:c1dc:3a1b:1:20a:e6ff:fef0:a2b3) through a 
> 6to4 relay to a "native" IPv6 (2001:4f8:0:2::d). Remember that you your 
> destination path depend on the "native" v6 domains served by the relay and 
> the scope of 2002::/16 announce.
> 
> and using the anycasted 6to4 relay, has its own issues:
> 
> RFC 3068 section 3
> 
> " Anycast routing is known to cause operational issues: since the
>    sending 6to4 router does not directly identify the specific 6to4
>    relay router to which it forwards the packets, it is hard to identify
>    the responsible router in case of failure, in particular when the
>    failure is transient or intermittent.  Anycast solutions must thus
>    include adequate monitoring of the routers performing the service, in
>    order to promptly detect and correct failures, and also adequate
>    fault isolation procedures, in order to find out the responsible
>    element when needed, e.g., following a user's complaint. "
> 
> hope this helps

Exactly that's what's going on.

Not just 'hard' but so far not possible (not tried too much) to identify
the responsible anycast instance.
trying a non-anycasted relay. getting help.

Thanks,
Frank