Hi all I need a little sanity check.

Here is the scenario. I'm testing m0n0wall (net45xx) as a client end of 
a Site2Site OpenVPN setup. One of my last hurdles to a small test 
deployment is that we use a internal company only domain. So I want 
dnsmasq setup to use the users ISP for all normal DNS lookups.  But 
lookups for our internal domain should be forwarded to the company DNS 
cache.  This way if the tunnel drops the user doesn't loss there ability 
to surf the net.

Now I know dnsmasq is capable of this by passing a ARG like 
--server=/domain_name/dns_cache_ip and I've got it working using 
exec.php. My questions are is this the only way to get dnsmasq to do 
this or is there some other way i.e. config file. And is there a way to 
set this up in the web interface (incidentally making me totally blind 
hence the sanity check)? If it's not there yet I'd be more then happy to 
code it up.

Thanks!
    Joe