So I got a PPTP vpn setup and it works great except for one thing...  
local DNS. I am using OS X leopard and have setup the built in apple  
vpn client. I notice that when I connect to the vpn I get two DNS  
servers: 192.168.1.1 (the monowall router) and 192.168.1.90 (my DNS  
for the LAN). I only want the 192.168.1.90 as a DNS server. I have  
looked at all the DNS settings and I can't figure out how I am being  
assigned 192.168.1.1 as the primary DNS server. I want 192.168.1.90 to  
be the primary and only DNS server for VPN connections. Does anyone  
have any ideas what setting I missed?

Trevor