[lacnog] Articulo: Understanding why IPv6 renumbering problems occur
fhfrediani en gmail.com
Mar Sep 17 21:07:57 -03 2019
On 16/09/2019 07:16, Fernando Gont wrote:
>> I seems to me it would be more productive if somehow SLAAC could, one it
>> is aware there was a prefix change to send a broadcast message with some
>> kind of flag which devices should understand and fully refresh their
>> IPv6 addresses immediately.
> Well, an RA with proper lifetimes could, to some extent, achieve that.
> But I believe for robustness-sake the smarts should be on the hosts, as
> opposed to the network.
In the situation described I think lifetime would be irrelevant, because
once the CPE finds out it must use another PD it must inform all devices
in all LANs and they should react to it immediatlly by changing their IP
addresses regardless of the lifetime. Make sense ?
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