Reverse for a /23

[Mark.Andrews at iengines.com]

> On Wed, 22 Dec 1999, Cricket Liu wrote:
> 
> > If you want to "learn the lessons of RFC 2317," you might be
> > interested in the first sentence of its Introduction:
> > 
> > "This document describes a way to do IN-ADDR.ARPA
> >  delegation on non-octet boundaries *for address spaces
> >  covering fewer than 256 addresses.*" [My emphasis.]
> 
> O.K... I had heard RFC2317 was for doing reverse breaking _any_ of the
> octets... not just the last one.
> 
> Then what would be done, for say a /17 reverse?  Create 32768 reverse
> files?
> 
> 					----Steve
> Stephen Amadei
> Systems Admin
> Dandy.NET!
> Atlantic City, NJ
> 
> 

	You would normally create 128 NS RRsets for (if in the lower half)

		0.XX.YY.IN-ADDR.ARPA.
		...
		127.XX.YY.IN-ADDR.ARPA..

	In general however you don't need to do all of these until the
	address space in each /24 is being used at which time a request
	is made to delegate this part of the in-addr.arpa space to a
	particular set of servers.

	Mark
--
Mark Andrews, Internet Engines Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at iengines.com