I have VPNC running on a NetBSD firewall that is connected to my cable ip 
provider.  /etc/resolv.conf is set to point first at the DNS provided at 
the site that the VPN connects to.  If I telnet to hosts from that firewall 
or from my primary things seem to work ok.  Nslookup works from either machine
as well.  Opera seems to work??  I get connected to where I intended.  From 
my primary machine, where I have changed resolv.conf to point at the fake 
space (10.n.n.n) DNS host (the default route goes to the cable firewall box 
where the VPN is running) I have problems with FireFox (Deer Park).  If I 
specify a host, which is at the other end of the VPN)  using it's name 
("host.com") I can not see any packets to port 80 being generated by FireFox 
on any interface.  If I specify the ip address it connects.  This doesn't work 
for long, as soon as I pick a link it can't resolve the name.

Opera seems to work so I'm ignorant of how FireFox does name resolution.

So I rsh to the firewall and start firefox there (displaying on my primary 
work machine) - same result.  I'm stymied as to what is (or is not) going on
with this, clues are appreciated.

TIA,
Paul N.