PTR zone /28 not working

joans4nz joans4nz at gmail.com
Thu Nov 5 02:24:32 UTC 2009


Hi,

I use Bind-9.4.2 running on FreeBSD-7.2.

Last week my DNS was reconfigured to a new IP address pool by my ISP and by
me from a /29 to /28 address range.

Using "How is my DNS" I check my domain and all is good except reverse
lookup. My ISP also reconfigured the PTR zone and delegate the reverse zone
like RFC-2317 and this is the change executed by my ISP.

224/28   IN   NS   ns1.mydomain.com
224/28   IN   NS   ns2.mydomain.com
225        IN   CNAME   225.224/28.CCC.BBB.AAA.in-addr.arpa.
226        IN   CNAME   226.224/28.CCC.BBB.AAA.in-addr.arpa.
227        IN   CNAME   227.224/28.CCC.BBB.AAA.in-addr.arpa.
228        IN   CNAME   228.224/28.CCC.BBB.AAA.in-addr.arpa.
229        IN   CNAME   229.224/28.CCC.BBB.AAA.in-addr.arpa.
230        IN   CNAME   230.224/28.CCC.BBB.AAA.in-addr.arpa.
231        IN   CNAME   231.224/28.CCC.BBB.AAA.in-addr.arpa.
232        IN   CNAME   232.224/28.CCC.BBB.AAA.in-addr.arpa.
233        IN   CNAME   233.224/28.CCC.BBB.AAA.in-addr.arpa.
234        IN   CNAME   234.224/28.CCC.BBB.AAA.in-addr.arpa.
235        IN   CNAME   235.224/28.CCC.BBB.AAA.in-addr.arpa.
236        IN   CNAME   236.224/28.CCC.BBB.AAA.in-addr.arpa.
237        IN   CNAME   237.224/28.CCC.BBB.AAA.in-addr.arpa.
238        IN   CNAME   238.224/28.CCC.BBB.AAA.in-addr.arpa.


I have configured my PTR zone 224/28.CCC.BBB.AAA.in-addr.arpa. but, when I
test my PTR zone using "www.kloth.net/services/nslookup.php" or "
network-tools.com/nslook/Default.asp" using default name server I receive
"Queried domain does not exist".

If I test my zone using my name server in this web sites mentioned I
receive:

server can't find 226.CCC.BBB.AAA.in-addr.arpa: REFUSED

If I use the syntax:

226.CCC.BBB.AAA.in-addr.arpa.   IN   PTR   ns1.mydomain.com.

/var/log/messages show

named[38267]: master/db.my_ptr_zone:21: ignoring out-of-zone data
(226.CCC.BBB.AAA.in-addr.arpa)

If I use the syntax:

226     IN   PTR   ns1.mydomain.com.

/var/log/messages does not show any messages but when I test my DNS server
from the web sites before mentioned I still receive

server can't find 226.CCC.BBB.AAA.in-addr.arpa: REFUSED

If I modify the PTR zone in named.conf and db file to
66.BBB.AAA.in-addr.arpa. /var/log/messages does not show any messages and
when I test my DNS server from the web sites before mentioned I receive a
good answer from my DNS server.

$ORIGIN 224/28.BBB.CCC.AAA.IN-ADDR.ARPA. does not work

$ORIGIN 6.CCC.AAA.IN-ADDR.ARPA. it work

What is wrong?

Why does not work using 224/28.BBB.CCC.AAA.IN-ADDR.ARPA. zone configuration?

Thanks for your time.

joans4nz
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