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Re: [dhcwg] dhc WG last call on draft-ietf-dhc-relay-id-suboption-00.txt



On Mon, Sep 08, 2008 at 03:47:44PM -0400, Ralph Droms wrote:
> http://www.ietf.org/internet-drafts/draft-ietf-dhc-relay-id-suboption-00.txt

The draft mentions in Introduction the use of the field in identifying
the client instead of the client-identifier or the chaddr field.

It doesn't seem to address or suggest server behaviour when a client
is RENEWING.  All the server would have at this stage is any identity
the client offers, which is sure to mismatch any relay-agent supplied
value, which is what the lease binding is suggested to be identified
against.

I think in particular the advice to generate a DUID for the client to
put in this field is a potentially misleading default, as for example
it would be fairly bad for a relay to manufacture a new DUID-LLT every
time it sees a given client.  I know of no reason why this would be
considered beneficial; presuming the client supplies a DUID, it would
always be preferrable.  If there is some beneficial reason for A
DUID-like identifier to be manufactured by a relay, perhaps it could
be described.

I think this draft could use some more work before going to IESG.

-- 
Ash bugud-gul durbatuluk agh burzum-ishi krimpatul.
Why settle for the lesser evil?	 https://secure.isc.org/store/t-shirt/
-- 
David W. Hankins	"If you don't do it right the first time,
Software Engineer		     you'll just have to do it again."
Internet Systems Consortium, Inc.		-- Jack T. Hankins

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