Before you use ASDM to add a web and mail server to your topology, you need to make the following decisions regarding the architecture:
Where to logically place the servers relative to the ASA/PIX Security Appliance
What IP addresses to give the servers on the inside network
What IP addresses to give the servers on the outside network
What services are going to be offered on these servers
Logical placement of the servers in your network is a critical decision. It is important to remember that the servers will be hosting data and will be reachable by anyone with Internet connectivity—both legitimate users and hackers alike.
You have four options for placement ...