A few weeks ago I found a program (cant remember if it was included with BT5/R2) that was a dns spoofer/server.
It would let you specify a file of what spoofed results to reply with and then anything not in the list it would go off and give the real IP.

I can't seem to find that anymore...

I dont think it was 'dnsspoof' as that doesnt seem to answer with real IP's if you dont have the host in the file. I believe with dnsspoof you can do a wildcard but that replies with the server every time as oposed to the real IP.

Anyways if anyone has any ideas what this program was called that would be great :P