Cisco Cisco Firepower Management Center 4000

Select the 

 check box to allow the inline interface to handle traffic.

If you clear the check box, the interface becomes disabled so that users cannot access it for security 
purposes.

From the 

 drop-down list, select an option to designate the link mode or select 

 to 

specify that the interface is configured to automatically negotiate speed and duplex settings. Note that 
Mode settings are available only for copper interfaces.

Interfaces on 8000 Series appliances do not support half-duplex options. 

From the 

 drop-down list, select an option to designate whether the interface is configured for 

MDI (medium dependent interface), MDIX (medium dependent interface crossover), or Auto-MDIX. 
Note that MDI/MDIX settings are available only for copper interfaces.

By default, MDI/MDIX is set to 

, which automatically handles switching between MDI and 

MDIX to attain link.

Click 

.

The inline interface is configured. Note that your changes do not take effect until you apply the device 
configuration; see 

 for more information.

Protection

Before you can use inline interfaces in an inline deployment, you must configure inline sets and assign 
inline interface pairs to them. An inline set is a grouping of one or more inline interface pairs on a device; 
an inline interface pair can belong to only one inline set at a time.

See the following sections for more information:

Protection

The Inline Sets tab of the Device Management page displays a list of all inline sets you have configured 
on a device. Note that you cannot configure inline sets to go into bypass mode on a virtual device or 
Sourcefire Software for  X-Series. The Inline Sets Table View Fields table includes summary 
information about each set.