I am using the blue zone for a type of dmz no mans land, but by default they have access to the red zone.  I would prefer the blue zone to have no access to anywhere including the red zone.  I am using release 2.1.2 and thought I would ask/see how i might do this, I am very familiar with iptables but i would like to set it and have it permanent in the case of a reboot.  Thanks in advance...