$ORIGIN 16.172.in-addr.arpa.
2 86400	IN SOA kuemmel.fh-wedel.de. root.kuemmel.fh-wedel.de. (
             2003042516 28800 3600 604800 86400 )
2 86400 IN NS  kuemmel.fh-wedel.de.
$ORIGIN 2.16.172.in-addr.arpa.
1 86400	IN PTR node01.cluster.fh-wedel.de.
2 86400	IN PTR node02.cluster.fh-wedel.de.
3 86400	IN PTR node03.cluster.fh-wedel.de.