Problem with Classless IN-ADDR.ARPA delegation

[Barry Margolin]

In article <a1jkqb$cub at pub3.rc.vix.com>,
Guillaume Laurès  <glaures at ebi-fr.com> wrote:
>
>le mer 09-01-2002 =E0 22:30, Mark Damrose a =E9crit :
>> You included the wrong snippet from named.conf, but aside from that I can=
>'t
>Yeah, sorry, here is the relevant snippet:
>
>zone "1-27.66.68.195.in-addr.arpa" {
>        type master;
>        file "195.68.66.1-27.rev";
>        };
>
>
>
>> see anything wrong with your setup.  When I query your server, I get the
>> answers I expect.
>
>How do you query it to get the information ? I'm curious about that.

% dig 1.1-27.66.68.195.in-addr.arpa ptr @srv-web.ebi-fr.com +norec

; <<>> DiG 8.3 <<>> 1.1-27.66.68.195.in-addr.arpa ptr @srv-web.ebi-fr.com +norec 
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13927
;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUERY SECTION:
;;	1.1-27.66.68.195.in-addr.arpa, type = PTR, class = IN

;; ANSWER SECTION:
1.1-27.66.68.195.in-addr.arpa.  10M IN PTR  travaux.pratique.fr.

;; AUTHORITY SECTION:
1-27.66.68.195.in-addr.arpa.  10M IN NS  srv-web.ebi-fr.com.

;; ADDITIONAL SECTION:
srv-web.ebi-fr.com.	10M IN A	195.68.66.4

;; Total query time: 114 msec
;; FROM: tools.genuity.com to SERVER: srv-web.ebi-fr.com  195.68.66.4
;; WHEN: Wed Jan  9 15:00:55 2002
;; MSG SIZE  sent: 47  rcvd: 128

>Again, how did you check to which dns my ISP's is delegating the
>classless reverse zone ?

% dig -x 195.68.66.1 ptr @moria.imaginet.fr +norec

; <<>> DiG 8.3 <<>> -x ptr @moria.imaginet.fr +norec 
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61720
;; flags: qr ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;	1.66.68.195.in-addr.arpa, type = PTR, class = IN

;; ANSWER SECTION:
1.66.68.195.in-addr.arpa.  10M IN CNAME  1.1-27.66.68.195.in-addr.arpa.

;; AUTHORITY SECTION:
1-27.66.68.195.in-addr.arpa.  10M IN NS  www.ebi-fr.com.

;; Total query time: 109 msec
;; FROM: tools.genuity.com to SERVER: moria.imaginet.fr  194.51.83.1
;; WHEN: Wed Jan  9 15:01:50 2002
;; MSG SIZE  sent: 42  rcvd: 91

RFC 2317 recommends that the servers for the parent domain also be slaves
for the child domain.  That would probably help in your case.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
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