RE: IPv4 flag day

Yes, indeed, it is possible to give a hint to local router (for PIO withdrawal) from OSPF/RIP, especially if router participate in DHCP-PD and understand what particular prefix to monitor in OSPF.
I believe that such solution was never documented and probably never implemented. It would have many proc and cons. It is very debatable.
Ed/
> -----Original Message-----
> From: Marco Moock via NANOG <[email protected]>
> Sent: Friday, June 19, 2026 09:27
> To: North American Network Operators Group <[email protected]>
> Cc: Marco Moock <[email protected]>
> Subject: Re: IPv4 flag day
> 
> Am 19.06.26 um 08:16 schrieb Vasilenko Eduard:
> > OSPF and RIP are not capable in principle to propagate address space for
> delegation.
> > IPv6 source address is dynamic, PA (provider aggregated address space) may
> become invalid after 1 link down.
> 
> RIP/OSPF IIRC can also withdraw routes.
> Even if that is a crappy solution combined with DHCPv6-PD and dynamic
> prefixes.
> 
> 
> --
> Gruß
> Marco
> 
> Junk-Mail bitte an [email protected]
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