Delagation

[Mark.Andrews at nominum.com]

> I was suppose to have had a /27 subdelagated to my nameservers to do
> reverse. I was told to put 192-224.48.245.209.in-addr.arpa in my
> named.conf for the zone. This doesn't jive with the rfc. Has anyone seen
> it work like this? Thanks for the time.
> 
> andy

	See RFC 2317 Classless IN-ADDR.ARPA delegation.

	Your ISP has not yet set up the parent zone.  There should
	be a CNAME record
193.48.245.209.in-addr.arpa. IN CNAME 193.192-224.48.245.209.in-addr.arpa.
	if they have set up the parent zone.
	I would also expect that the zone name would be
	<FIRST>-<LAST>.X.Y.Z.IN-ADDR.ARPA not
	<FIRST>-<MASK>.X.Y.Z.IN-ADDR.ARPA.
	

; <<>> DiG 8.2 <<>> ptr 193.48.245.209.in-addr.arpa 
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 2
;; QUERY SECTION:
;;	193.48.245.209.in-addr.arpa, type = PTR, class = IN

;; AUTHORITY SECTION:
245.209.in-addr.arpa.	59m35s IN SOA	ns1.Level3.net. hostmaster.Level3.net. (
					2000041200	; serial
					2H		; refresh
					10M		; retry
					4w2d		; expiry
					1H )		; minimum

245.209.in-addr.arpa.	5d23h50m58s IN NS  ns1.Level3.net.
245.209.in-addr.arpa.	5d23h50m58s IN NS  NS2.Level3.net.

;; ADDITIONAL SECTION:
ns1.Level3.net.		50m58s IN A	209.244.0.1
NS2.Level3.net.		50m58s IN A	209.244.0.2

;; Total query time: 1 msec
;; FROM: bsdi.dv.isc.org to SERVER: default -- 130.155.191.233
;; WHEN: Thu Apr 13 12:29:26 2000
;; MSG SIZE  sent: 45  rcvd: 170

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