Hi, Piet: I wrote that portion and I should have it clearer. Sorry for causing the confusion. Some clarifications are inserted.
Date: Wed, 28 Jul 1993 19:27:57 +0200 From: Piet.Beertema@mcsun.EU.net To: "Mark Knopper" <mak@merit.edu> CC: regional-techs@merit.edu
(1) Class C Block Submission:
It is allowed to submit a block of consecutive Class C addresses in a NACR. What about Class B blocks, unlikely though such an event may be?
This feature is not very useful for Class B as very few sites own blocks of Class B. It is not allowed to avoid confusion and to make it easier to detect typos.
netnum: 198.4.65 - 198.4.79 What would be allowed and not allowed here? For example: netnum: 198.4.65.0 - 198.4.79.0 should be perfectly valid, given that trailing zero part may be stripped off. But are: netnum: 198.4.65-198.4.79 netnum: 198.4.65.0-198.4.79.0 valid too
All of the above are allowed. The rule is that: o The "firstip" and "lastip" should be separated by a "-" (plus zero or more white spaces). o The trailing 0 (last octet) for the "firstip" or "lastip" are optional. o Also, the first two octets of "firstip" and "lastip" have to be identical.
Also note that your example is a trivial one. I assume/hope you can cope with "overflows": netnum: 198.4.90-198.5.10 too?
Yes, such NACR's will be rejected by the parser.
Piet
-- Enke Chen Merit/NSFNET