I'm trying to activate the DMZ interface on a restricted license ASA 5505 but I get an error when I try to ADD the interface. The message says "With the current license device will only supports 2 fully functional interfaces. Third interface can be added,but the traffic from this interface to another interface need to be blocked. Please make appropriate selection in advanced tab." I gather that I have to define the limitation myself? The problem is that I can't access the advanced tab because of the error. Can I do something via CLI to get through? I'm using ASA 8.2 and ASDM 6.2.
from the CLI, on the vlan interface config of the dmz interface you need to add the following config:
no forward interface vlan X
...where X is the vlan number where your DMZ will *NOT* be talking to.