[Int-area] Re: NDP for RFC4291 Sec. 2.5.5.1. IPv4- Compatible IPv6 Addresses for v4-w-v6-nh Forwarding/RFC8950 at RS

>> Could you please describe the problem you're solving?

> A host that 'usually' only does v4-w-v6 nexthop and does _not_ have
> a(ny) v4 addresses getting routes with a v4 nexthop that are on a link
> on which the host also is (but only has a v6 address on).

You mean a router, right?  If a host has no IPv4 addresses assigned, then
I don't see how it can send an IPv4 packet.

And if it's a router, then I'd find it more natural to use ARP, with the
undefined address in the ar$spa field.

-- Juliusz

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