more on delegating subdomain

[Matt Kehler]

I am resending this as we had a email issue last night and some stuff
was lost.   I'm trying to delegate a subdomain..its not working.  I do
not see the requests go out of my primary domain nameserver.  I'm using
bind9.2.latest.  Snip of my domain zone data file is below from my
primary NS server, wrha001ns04 for the wrha.mb.ca domain, and trying to
delegate the ad.wrha.mb.ca subdomain off to the nameserver wrha001ad01
(at 172.19.40.21)  .  is the below not correct?

>>>>>>>>>>>>>
[root at wrha001ns04 etc]# cat wrha.mb.ca.hosts.internal
$ttl 38400
wrha.mb.ca.     IN      SOA     wrha001ns04. root (
                        1030053590
                        10800
                        3600
                        604800
                        38400 )
wrha.mb.ca.     IN      NS      wrha001ns04.
ad.wrha.mb.ca.  IN      NS      wrha001ad01.ad.wrha.mb.ca.
home.wrha.mb.ca.        IN      A       172.19.40.30
proxy.wrha.mb.ca.       IN      A       172.19.40.5
wrha1_srv.wrha.mb.ca.   IN      A       172.19.40.10
apps.wrha.mb.ca.        IN      A       172.19.40.19
wrha001ad01.ad.wrha.mb.ca.      IN      A       172.19.40.21


thanks!
Matt