Hi Baptiste,
are you in search for a trigger that fires every time a new prefix is advertised/seen? Or do you refer to the event of a new IPv6 interface being configured?
Cheers, Thomas
I would prefer to get an event when a global IPV6 is added so I'm sure it is otherwise if a new prefix is advertised/seen, i'm not sure an IPV6 is added. So what Martine suggested should be ok for my purpose.