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

> I just had a stupid idea in the context of v4-w-v6-nh: Why don't we
> just do NDP?

V4-via-v6 uses NDP.  Actually, the main difference between ordinary IPv4
next-hop routing and v4-via-v6 is that the latter uses NDP where the
former uses ARP.

> Technically, there is nothing that keeps a v6 only router doing v4-w-v6
> nh (possibly with RFC8950 behind) from sending a neighbor solicitation
> for "who has ::192.0.2.12" when it wants to forward a packet with an
> IPv4 next-hop.

V4-via-v6 aims at solving the problem of forwarding an IPv4 packet to
a next hop with no IPv4 address.  In the case you describe above, it looks
like the next hop does have an IPv4 address, so apparently you're solving
a different problem.

Could you please describe the problem you're solving?

-- Juliusz

_______________________________________________
Int-area mailing list -- [email protected]
To unsubscribe send an email to [email protected]