[ntpwg] KISS codes

[Danny Mayer]

Noone has commented on my recommendations for the KISS codes so I'm
sending it back out again. This is much more important than the
discussion on refid.

4) P24. Section 7.4 last sentence:
   Other than
   displaying the kiss code, KoD packets have no protocol significance
   and are discarded after inspection.

I'd like to see recipients of KISS codes take actions dependent on the
receipt of some of the codes. Practical experience has shown that the
operators of public servers need to be able to assert more control over
the clients that contact their servers. I'd like to therefore change
this sentence to read as follows:

   Recipients of kiss codes MUST inspect them and in the following cases
   take these actions:
   a) For kiss codes: DENY, RSTR the client MUST demobilize any
      associations to that server and stop sending packets to that
      server;
   b) For kiss code: RATE the client MUST immediately reduce its polling
      interval to that server and continue to reduce it each time it
      receives a RATE kiss code.
   c) Other than the above conditions, KoD packets have no protocol
      significance and are discarded after inspection.