[atlas] IPv6-renew

Am 21.06.21 um 08:20 schrieb Marco Davids (IETF) via ripe-atlas:
> Hi,
> 
> Whenever  my network get's a different IPv6-prefix from my provider 
> (which happens every now and then), the probe is flagged down in the 
> dashboard.
> 
> The reason seems to be that RIPE Atlas probes are unable to renew their 
> (SLAAC?) IPv6-addresses when needed. Only solution is a powercycle.
> 
> Is this a flaw, or is it by design?
> 

I have had similar problems - even if I change a probe quickly between 
different LANs/ISPs.

I assume you talk about a hardware probe (the behavior on software 
probes is out of control of ripe).

Recognizing the new network takes a while.
But in the end, I think it is a flaw of your router. It should withdraw 
the old prefix by using reasonable life times/ zero life times.

Here is an example with a hw probe and ~daily reconnects. The measured 
disconnected time is between 2 and 5 minutes usually. I think that's ok.


https://atlas.ripe.net/probes/53236/#tab-network


Regards,
Thomas