Re: draft-gont-6man-slaac-renum-01

Also, if source address ingress filtering being done by CPE or SP, wouldn’t there be icmp feedback to host that its source address is no longer good that can be used by host to perhaps trigger some action on address?

- Bernie

> On Mar 25, 2019, at 10:36 AM, Bob Hinden <bob.hinden@gmail.com> wrote:
> 
> 
> 
>> On Mar 25, 2019, at 9:55 AM, Fernando Gont <fgont@si6networks.com> wrote:
>> 
>> Hi, Bob,
>> 
>> On 24/3/19 22:49, Bob Hinden wrote:
>> [...]>>
>>>> If a positive packet reflection occurs then that router still
>>>> routes the PIO onto the link. If there's no such response within
>>>> $TRIES across $SECONDS, then assume that router doesn't forwarding
>>>> that PIO onto the link.  (Note that the PIO might still be valid
>>>> on-link as specified by a 2nd router…)
>>> 
>>> If the host has no other global prefix, I don’t see any reason to
>>> have the host stop using the prefix.
>> 
>> Agreed. That's why this "check" would be triggered by the receipt of
>> packets from the same router including PIOs for prefixes other than the
>> previously advertised one.
>> 
> 
> There has to be verified two way communication with the router.
> 
> Bob
> 
>> If the RA contains no PIOs, this check would not be triggered, and the
>> possibly-stale prefix would be kept.
> 
>> -- 
>> Fernando Gont
>> SI6 Networks
>> e-mail: fgont@si6networks.com
>> PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
>> 
>> 
>> 
>> 
> 
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