I upgraded our NetWare 6.0 server to 6.5 sp1 and DHCP runs fine except
for this error:

DDNS : Not authoritative for update Reverse zone
error: client updating zone
'16.172.IN-ADDR.ARPA/IN': Novell

We have an arpa zone set up and this all worked under NetWare 6.0 so
it must be due to the upgrade to 6.5. NetWare 6.5 is bind 9
compliant, right? So I must have something in the arpa zone
configured incorrectly.

Thanks in advance!