Wietse Venema:
I prefer the "must not be required" form. I know that it implies
"may perform SSP lookup", but the latter form can more easily be
lobbied into a stronger recommendation for SSP lookup, which is
definitely not what I want.
Hector Santos:
I am curious to know, from an engineering standpoint, why it is something
you definitely not want to see implemented? What am I missing here?
At this stage we are talking about a minimum protocol. You are free
to implement SSP lookups that exceed the minimum protocol. However,
I would oppose recommending SSP lookup in a particularly important
scenario where now such lookup "must not be required".
Wietse
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