I want to have know which model of ASA has 5 ethernet interfaces not including the management port ? and also How can i use the management port as a port for pass through traffic?
Go to your mgmt interface and edit the properties. Uncheck the "Dedicate this interface to management only" and it is treated like a regular interface; If you need more ethernet ports, purchase a 4port eth module for the units containing the expansion slot, or, make subinterfaces off of your existing ethernet interfaces.
Hope this helps?