Classless IN-ADDR.ARPA delegation.

[Barry Margolin]

In article <Pine.BSO.4.21.0002110349230.1841-100000 at NOC.maKintosh.com>,
John Kerbawy  <john at NOC.maKintosh.com> wrote:
>I think I'm following, at least in theory. I'm not sure exactly how I'm
>supposed to implement this though.
>
>$ORIGIN 236-247.xxx.xxx.xxx.in-addr.arpa. strikes me as wrong because of
>the "-". Maybe I'm not following you.

What's wrong with "-"?

I don't understand why you're bothering with $ORIGIN, anyway?  Each of
these needs to be separate zones, and the default origin is the zone name.
The master server for this range of addresses would contain the following
in its named.conf file:

zone "236-247.xxx.xxx.xxx.in-addr.arpa" {
  type master;
  file "db.xxx.xxx.xxx.236-247";
}

The file db.xxx.xxx.xxx.236-247 would contain PTR records for all the
addresses in that range.

The master server for xxx.xxx.xxx.in-addr.arpa would contain the following
records in this zone file:

236-247  NS  <server for 236-247 range>
$GENERATE 236-247 $ CNAME $.236-247

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.