Steven M. Bellovin writes:
> the idea is to facilitate rapid renumbering.
As I said: Why should the indirection be handled by the _client_? Why
shouldn't it be handled by the _server_?
> not wanting more polling,
Server-side indirection means that every server on the Internet will
check, maybe twice per TTL, whether its ISP is changing its address.
Client-side indirection means that every client will check, slightly
less than once per TTL, with every ISP of every server that it uses
regularly.
The overall effect on Internet traffic is small either way, but it's
much smaller with server-side indirection---and the user doesn't have to
wait for it.
> AAAA is especially problematic if DNSSEC is used, since
> that would require resigning the entire zone -- and that's expensive.
People change their zones all the time. If DNSSEC can't deal with that,
it's in even more trouble than I thought.
---Dan
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