IPv4 routes with IPv6 nexthop in OSPFv3

[Bernd Naumann]

On 28.02.25 6:52 PM, Lexi Winter wrote:
> is this possible in BIRD 2.16.1, and if so, how would i go about setting
> it up?

If you use Linux you too can use unnumbered OSPF.
(I did not dig yet into what VPP is or on what OS it runs...)

AFAIK OSPFv3 is IPv6 only right? So in a mixed setup you need (with
bird) 2 OSPF instances right? Or is this patch by now upstream?

However: Unnumbered Interfaces;
Like in the post, "just" assign your IPv4 /32 from `lo` to every
interface where you speak OSPF.
You wont get v4 via v6 NH, but you don't waste IPv4 addresses.

iBGP is not an option to have v4-via-v6 routes?

Best,
Bernd
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