Wrong IP Lookup

[Norman Zhang]

Hi,

I have BIND setup to take DDNS from a multihomed box. DDNS are enabled 
on both NICs. For example,

dc1.mydomain.com 192.168.11.21 192.168.22.21

However, the wrong IP may sometimes be resolved for the wrong subnet. Is 
there a way I can restrict hosts in 192.168.22.0/24 subnet to resolve to 
192.168.22.21 only? And likewise for subnet 192.168.11.0/24?

Regards,
Norman Zhang