Hi,
I am trying to learn dns on my ubuntu 8.04 box and I presume it is working. I have set up the auto update of clients to the dns.
When the client tries to register is see the following error in the syslog

unable to add reverse map from 10.1.168.192.in-addr.arpa. to tftpadmin-desktop.bbnl.i
Not sure where i am going wrong. If somebody can help me out here, that will be a great help.

the configurations are as follows

tftpadmin@bbnldmn:/etc/bind$ cat named.conf.local
//
// Do any local configuration here
//
key DHCP_UPDATER {
algorithm HMAC-MD5.SIG-ALG.REG.INT;

# Important: Replace this key with your generated key.
# Also note that the key should be surrounded by quotes.
secret "4zK3Lgn1xcJ4dysiyT9F5w==";
};
// Consider adding the 1918 zones here, if they are not used in your
// organization
//include "/etc/bind/zones.rfc1918";
zone "bbnl.in" IN {
type master;
file "/var/lib/bind/bbnl.in.db";
allow-update { key DHCP_UPDATER; };
};
zone "0.168.192.in-addr.arpa" {
type master;
file "/var/lib/bind/rev.0.168.192.in-addr.arpa";
allow-update { key DHCP_UPDATER; };
};
tftpadmin@bbnldmn:/etc/bind$


tftpadmin@bbnldmn:/var/lib/bind$ cat bbnl.in.db
$ORIGIN .
$TTL 86400 ; 1 day
bbnl.in IN SOA bbnldmn.bbnl.in. hostmaster.bbnl.in. (
2008080932 ; serial
28800 ; refresh (8 hours)
14400 ; retry (4 hours)
2419200 ; expire (4 weeks)
86400 ; minimum (1 day)
)
NS bbnldmn.bbnl.in.
MX 10 bbnldmn.bbnl.in.
$ORIGIN bbnl.in.
bbnldmn A 192.168.0.1
bzr CNAME bbnldmn
localhost A 127.0.0.1
$TTL 300 ; 5 minutes
tftpadmin-desktop A 192.168.1.10
TXT "001e0515e83dfe2e75863cc636ec7ce233"
tftpadmin@bbnldmn:/var/lib/bind$

tftpadmin@bbnldmn:/var/lib/bind$ cat rev.0.168.192.in-addr.arpa
$ORIGIN .
$TTL 86400 ; 1 day
0.168.192.in-addr.arpa IN SOA bbnldmn.bbnl.in. hostmaster.bbnl.in. (
2008080905 ; serial
28800 ; refresh (8 hours)
14400 ; retry (4 hours)
2419200 ; expire (4 weeks)
86400 ; minimum (1 day)
)
NS bbnldmn.bbnl.in.
$ORIGIN 0.168.192.in-addr.arpa.
1 PTR bbnldmn.bbnl.in.
tftpadmin@bbnldmn:/var/lib/bind$

tftpadmin@bbnldmn:/etc/dhcp3$ cat dhcpd.conf
option subnet-mask 255.255.255.0;
default-lease-time 7200;
option ifcp-code code 120 = unsigned integer 32;

ddns-update-style interim;
ignore client-updates;
ddns-domainname "bbnl.in.";
ddns-rev-domainname "in-addr.arpa.";

option domain-name "bbnl.in";
option domain-name-servers bbnldmn.bbnl.in;

key DHCP_UPDATER {
algorithm HMAC-MD5.SIG-ALG.REG.INT;

# Important: Replace this key with your generated key.
# Also note that the key should be surrounded by quotes.
secret "4zK3Lgn1xcJ4dysiyT9F5w==";
};


zone bbnl.in. {
primary 192.168.0.1;
key DHCP_UPDATER;
}

zone in-addr.arpa. {
primary 192.168.0.1;
key DHCP_UPDATER;
}


default-lease-time 600;
max-lease-time 7200;

authoritative;

#log-facility local7;

subnet 192.168.3.0 netmask 255.255.255.0 {
range 192.168.3.5 192.168.3.10;
option routers 192.168.3.1;
}

'ignore client-updates' probably won't help