RE: IPv4 flag day

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.
Ed/
> -----Original Message-----
> From: Marco Moock via NANOG <[email protected]>
> Sent: Friday, June 19, 2026 09:02
> To: [email protected]
> Cc: Marco Moock <[email protected]>
> Subject: Re: IPv4 flag day
> 
> Am 19.06.26 um 07:54 schrieb Vasilenko Eduard via NANOG:
> > Small business may have a small routed network (a few router hops),
> > There is no mechanism to propagate PA address withdrawal through a few
> hops.
> 
> OSPF or RIP can be used. But the problem stays that if 2 prefixes are in use,
> there needs to be NAT to the ISP to avoid that the devices will unable to
> communicate.
> 
> 
> --
> Gruß
> Marco
> 
> Junk-Mail bitte an [email protected]
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