Which trigger for new IPv6 PE addresses?

[drosophila]

I'm stuck trying to react to the WAN interface getting a new IPv6 privacy extensions address. I've found the "newwanipv6" trigger but that only triggers when the main IPv6 address / prefix has changed. It does, however, not trigger when privacy extension addresses expire / new ones are generated. I need to react to both these events. A cron job would be possible but running that every minute is both wasteful and slow to react. There must be a better way, can somebody please point me in the right direction?

[JamesFrisch]

I need to react to both these events.

Why? Maybe we can help you better if you tell us why that should matter.


IMHO a changing PE IPv6 should never matter. And AFIK, OPNsense does not get a PE IPv6 on the WAN interface, even when SLAAC is used.

[meyergru]

AFAIK, OpnSense itself uses no privacy extensions for its own outbound connections. With IA_NA, it just cannot, because that would be a /128 and even with IA_PD, it does not, which has been criticised in the past.

Thus, I suspect you try to achieve something different? Dynamic DNS is out of the question, because you would rely on the redundant EUI-64 based parts for that, so what is your intention?