Classless IN-ADDR.ARPA delegation.

[John Kerbawy]

| Although RFC 2317 describes classless delegation in terms of CIDR blocks,
| it's not really dependent on using real CIDR prefixes.  It can be used with
| any subsets of a /24 block.  In your case, I would suggest delegating the
| following zones:
| 
| 0-229.xxx.xxx.xxx.in-addr.arpa
| 230-235.xxx.xxx.xxx.in-addr.arpa
| 236-247.xxx.xxx.xxx.in-addr.arpa
| 248-255.xxx.xxx.xxx.in-addr.arpa
| 
| In other words, instead of naming the subdomain after the CIDR prefix, name
| it after the range of addresses it contains.
| 
| If the 0-229 block is managed by the same group that the class C itself is
| delegated to, don't bother with the subdomain for that block.  Just put
| those PTR records in xxx.xxx.xxx.in-addr.arpa zone.  This will save you
| from having lots of unnecessary CNAME records.

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.

Thank you again. :)

__
.j0hn [john at maKintosh.com]