Paul Vixie wrote:
> william simpson was right in 1996. we should have moved "get host
> name corresponding to IP" to ICMP. the problems described by lee
> howard's draft are proof that our whole model is wrong.
Wrong. What's wrong is SLAAC, which is stateful in the worst
possible fashion with distributed state maintenance, which is
why extra overhead of DAD is mandated.
The proper solution is to ban SLAAC or, better, entire ND, which
purposelessly depends on multicast, complexity of which is
causing a lot of problems.
> william simpson's icmp idea came with the observation that only a
> host can reliably report its own name, and only while it's up,
> because it might have a new name from time to time.
You are right if we need reverse look up only.
However, as "it might have a new name from time to time" means
that the host must interact with DNS for updating forward look
up, an additional interaction (with different authority, in
general) for reverse look up is not bad.
It should be noted that, with DHCP, if a host is up, its DHCP
server, which have the authority for host's address, is
almost certainly up.
Masataka Ohta
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