Configuring BIND to give different IPs to different users

[Gil Shai]

Hi

Let's say I have BIND DNS cache server working and I get a query to
resolve www.microsoft.com.
I want to configure BIND to answer in two modes:
1) For IPs from a certain subnet, I would like to get the answer:
1.1.1.1
2) For IPs from a different IP subnet, I would like to get the real
IP.

Can that be done?

Thanks,
Gil