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16-10
Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter 16 Completing Interface Configuration (TransparentMode, 8.3 and Earlier)
Completing Interface Configuration in Transparent Mode (8.3 and Earlier)
Configuring General Interface Parameters
This procedure describes how to set the name, security level, and bridge group for each transparent
interface.
To configure a separate management interface, see the “Configuring a Management Interface (ASA 5510
and Higher)” section on page 16-11.
For the ASA 5510 and higher, you must configure interface parameters for the following interface types:
• Physical interfaces
• VLAN subinterfaces
• Redundant interfaces
For the ASA 5505, you must configure interface parameters for the following interface types:
• VLAN interfaces
Guidelines and Limitations
• You can configure up to two interfaces per context.
• For the ASA 5550 ASA, for maximum throughput, be sure to balance your traffic over the two
interface slots; for example, assign the inside interface to slot 1 and the outside interface to slot 0.
• For information about security levels, see the “Security Levels” section on page 16-2.
• If you are using failover, do not use this procedure to name interfaces that you are reserving for
failover and Stateful Failover communications. See the “Configuring Active/Standby Failover”
section on page 66-7 or the “Configuring Active/Active Failover” section on page 67-8 to configure
the failover and state links.
Prerequisites
• Complete the procedures in Chapter 12, “Starting Interface Configuration (ASA 5510 and Higher),”
or Chapter 13, “Starting Interface Configuration (ASA 5505).”
• In multiple context mode, complete this procedure in the context execution space. To change from
the system to a context configuration, in the Configuration > Device List pane, double-click the
context name under the active device IP address.
Detailed Steps
Step 1 Choose the Configuration > Device Setup > Interfaces pane.
In multiple context mode, only interfaces that were assigned to the context in the System execution space
appear in the table.
Step 2 Choose the row for an interface, and click Edit.
The Edit Interface dialog box appears with the General tab selected.
Step 3 In the Interface Name field, enter a name up to 48 characters in length.
Step 4 In the Security level field, enter a level between 0 (lowest) and 100 (highest).
See the “Security Levels” section on page 16-2 for more information.
Step 5 If the interface is not already enabled, check the Enable Interface check box.