[dhcwg] Some comments regarding draft-ietf-dhc-dhcpv6-unknown-msg-01

[Marcin Siodelski <[e-mail]>]

I have read the draft-ietf-dhc-dhcpv6-unknown-msg-01 and I support this
work move forward.

Short comment on this.

It would be good to distinguish between the term "intended recipient" and
"recipient". From the context I understand that the intended recipient is
used with regards to the target for the message being passed through relays
and the recipient is a term used to describe a host which is currently
holding a message. Perhaps this clarification could be placed in the
glossary or somewhere in the text?

Consider this:
"... the message is valid for constructing a new Relay-forward message if
the recipient is a relay agent, the relay agent does not identify itself as
the intended recipient, and the message is not a Relay-Reply message".

There is a mix-up of these two terms which may suggest that the message is
sent to a wrong relay which is  not an "intended recipient", while the
sentence is actually meant to tell that the relay is not a target for the
message being encapsulated.

There is also another sentence:
"A standards-complient DHCP server will never send a message to the a relay
other than in response to a message from a relay, so there should never be
a case where a relay receives a message for which it is the intended
receipient, but is not able to recognize that it is the intended recipient
for the message".

I have to admit that I had to read this sentence 5 times before I caught
the idea what it is about. It should be simplified, perhaps split into
multiple simple sentences. And the last part could be maybe written as:
"...but is not able to recognize it."

Also, the first part may be wrong in a light of rfc3315, section 19.1.1
which says that server may send Reconfigure in the Relay-Reply message and
since it is server initiated message, it is not sent "in response to a
message from relay" as stated in the bullet.

Cheers,
Marcin