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16-17
Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter 16 Completing Interface Configuration (Transparent Mode, 8.3 and Earlier)
Monitoring Interfaces
Step 6 If you use failover, enter the standby MAC address in the Standby Mac Address field. If the active unit
fails over and the standby unit becomes active, the new active unit starts using the active MAC addresses
to minimize network disruption, while the old active unit uses the standby address.
Allowing Same Security Level Communication
By default, interfaces on the same security level cannot communicate with each other, and packets
cannot enter and exit the same interface. This section describes how to enable inter-interface
communication when interfaces are on the same security level.
Information About Inter-Interface Communication
Allowing interfaces on the same security level to communicate with each other is useful if you want
traffic to flow freely between all same security interfaces without access lists.
If you enable same security interface communication, you can still configure interfaces at different
security levels as usual.
Detailed Steps
To enable interfaces on the same security level to communicate with each other, from the Configuration
> Interfaces pane, check Enable traffic between two or more interfaces which are configured with
same security level.
Monitoring Interfaces
For information about monitoring screens, see the “Monitoring Interfaces” section on page 15-21.