Bind 9 and DHCP reverse lookup problem

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Hi,

I am running RH9 with Bind 9.2.1 and DHCP (isc-dhcpd-V3.0pl9).

I have configured DHCP to automatically update the DNS with the
appropriate ip address and FQDN, and it works fine for the A records,
but when it tries to add an entry into the xxx.xxx.xxx-addr-arpa. File
it fails. I have scoured the various how-to's, man pages and the various
faq e-mail groups etc, and I can not find anything that gives me a clue
where to look, so I now come to the community to appeal for help.

NOTE: This is a class B subnet with 1024 addresses per subnet, starting
at x.x.128.0 and ending on x.x.131.255

Regards
Enrico


This is the error I receive.
============================
Jan 31 12:43:30 jbpn1 dhcpd: if IN A devel.jbpn. domain doesn't exist
add 216000 IN A devel.jbpn. 172.16.129.203 add 216000 IN TXT devel.jbpn.
"31eafe525c06abfba4c22f09c77d27fd93": success.
Jan 31 12:43:30 jbpn1 dhcpd: delete IN PTR 203.129.16.172.in-addr.arpa.
add 216000 IN PTR 203.129.16.172.in-addr.arpa. devel.jbpn.: not
authorized.
Jan 31 12:43:30 jbpn1 dhcpd: DHCPREQUEST for 172.16.129.203 from
00:11:0a:3e:dd:9b (devel) via eth0
Jan 31 12:43:30 jbpn1 dhcpd: DHCPACK on 172.16.129.203 to
00:11:0a:3e:dd:9b (devel) via eth0

My dhcpd.conf file looks like this.
===================================

default-lease-time 432000;
max-lease-time 604800;
option domain-name-servers 172.16.128.29;
option domain-name "jbpn.";
#
key mydhcpserver {
 algorithm hmac-md5;
 secret "Some MD5 Key data";
};
#
subnet 172.16.128.0 netmask 255.255.252.0 {
 ddns-updates on;
 range 172.16.129.96 172.16.131.254;
 option subnet-mask 255.255.252.0;
 option broadcast-address 172.16.131.255;
 option routers 172.16.128.3;
 authoritative;
 zone jbpn. { primary 172.16.128.29; key mydhcpserver; }
 zone 128.16.172.in-addr.arpa. { primary 172.16.128.29; key
mydhcpserver; }
}


My named.conf file looks like this.
===================================
options {
 directory "/var/named";
 query-source address * port 53;
};

logging {
 channel update_debug {
   file "/var/log/update-debug.log";
   severity  debug 3;
   print-category    yes;
   print-severity    yes;
   print-time   yes;
 };
            channel security_info    {
                 file "/var/log/named-th.info";
                 severity  info;
                 print-category yes;
                 print-severity yes;
                 print-time     yes;
            };

        category update { update_debug; };
        category security { security_info; };
};

key mydhcpserver {
 algorithm hmac-md5;
 secret "Some MD5 Key data";
};

zone "." {
 type hint;
 file "named.ca";
};

zone "jbpn." {
 type master;
 file "named.jbpn";
 allow-query { any; };
 allow-update { key mydhcpserver; };
};

zone "128.16.172.in-addr.arpa" {
 type master;
 file "named.172.16.128";
 allow-query { any; };
 allow-update { key mydhcpserver; };
};

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