Chapter 6 Scenario: DMZ Configuration
Configuring the Security Appliance for a DMZ Deployment
•For the internal clients to have access to HTTP and HTTPS resources on the Internet, you must create a rule that translates the real IP addresses of internal clients to an external address that can be used as the source address.
To accomplish this task, you should configure a PAT translation rule (port address translation rule, sometimes called an interface NAT) for the internal interface that translates internal IP addresses to the external IP address of the adaptive security appliance.
In this scenario, the internal address to be translated is that of a subnet of the private network (10.10.10.0). Addresses from this subnet are translated to the public address of the adaptive security appliance (209.165.200.225).
•For external clients to have HTTP access to the DMZ web server, you must configure an external identity for the DMZ web server and an access rule that permits HTTP requests coming from clients on the Internet. To accomplish this task, you should configure the following:
–Create a static NAT rule. This rule translates the real IP address of the DMZ web server to a single public IP address. In this scenario, the public address of the web server is 209.165.200.226.
–Create a security access rule permitting traffic from the Internet if the traffic is an HTTP request destined for the public IP address of the DMZ web server.
Starting ASDM
To run ASDM in a web browser, enter the
Note Remember to add the “s” in “https” or the connection fails. HTTPS (HTTP over SSL) provides a secure connection between your browser and the adaptive security appliance.
The Main ASDM window appears.
| Cisco ASA 5500 Series Adaptive Security Appliance Getting Started Guide |
