how to access DNS server

[ramonetNet]

Hi. We have SuSE 11 SLES running NAMED service (and DHCPD also) on a machine with 11.22.78.7 ip, and hostname "network.visc.es"

We have just one zone called "visc.es" : 11.22.78.XX, so file
"named.conf" has :

zone "78.22.11.in-addr.arpa" in {
file "master/78.22.11.in-addr.arpaXXXX";
type master;
allow-transfer { any; };
};

As there is also the file "/var/lib/named/master/78.22.11.in-addr.arpaXXXX" as :

+++
@ IN SOA network.visc.es.
root.network.visc.es. (
2011090701 ; serial
3h ; refresh
1h ; retry
1w ; expiry
1d ) ; minimum

78.22.11.in-addr.arpa. IN NS network.visc.es.
7 IN PTR network.visc.es.
+++

So far, so good.
No errors in /var/log/messages on service start.

But ... it does not work. From a remote machine I do

>>> "nslookup network.visc.es"
and it starts using network.visc.es server, but ...
>>> says "non-existing domain".

We have the named trace written into a file (not syslog) and can
change trace level using RNDC.
But we do not see any "error" in the request entries ...

Any clue or pointer is welcome. Sebastian.