It's not my question, but how about: 192.168.2.5 is the name server for 192.168.1.0 and 192.168.2.0.
Make sure that routing allows clients on 1.0 and 2.0 to reach 2.5 and that BIND listens on the interface(s) through which that traffic comes.
192.168.2.5 is also the gateway for 192.168.0.0. So 192.168.0.0 can get non-192.168.0.0 names from the isp DNS, the other names come from 192.168.2.5 using bind.
Huh? Clients are configured to use one or more DNS servers. They will ask any of those servers for an answer, in any order. So what you ask for cannot be done. What you probably want is for 2.5 to resolve all queries for 0.0 as well, and use the "forward first;" and "forwarders { ip.of.isp.dns; };" directives in BIND to take advantage of the ISP's DNS cache.
-- Rodolfo J. Paiz rpaiz@xxxxxxxxxxxxxx http://www.simpaticus.com
