Configuring the interfaces of the ASA is very simple. Perform the following steps to get started:
- Navigate to Configuration | Device Setup | Interfaces. Simply click on the interface you would like to configure/modify and click on Edit:
- The following window will appear, providing the settings for the interface itself. Here you can create a name for the interface, adjust the security-level, enable the interface, and assign an IP Address and Subnet Mask:
- Upon clicking OK, the ASDM will carry you back to the main Interface window. The following screenshot clearly depicts all the interfaces of the ASA, their security-levels, the IP address and subnet mask, their names, and most importantly, whether the interface is Enabled or Disabled:
