RE: IPv4 flag day

[Vasilenko Eduard via NANOG <nanog () lists nanog org>]

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 <nanog () lists nanog org>
> Sent: Friday, June 19, 2026 09:02
> To: nanog () lists nanog org
> Cc: Marco Moock <mm () dorfdsl de>
> 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 trashcan () stinkedores dorfdsl de
> _______________________________________________
> NANOG mailing list
> https://lists.nanog.org/archives/list/nanog () lists nanog org/message/XBJ57EE
> UKOERPPH25AVZZTIH5CFNOFFM/
_______________________________________________
NANOG mailing list 
https://lists.nanog.org/archives/list/nanog () lists nanog org/message/4I5K4IV3COUWOGZONAFGBTM4ZCFXSXZW/