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/