======HOW DO I CONFIGURE THE INTERNAL INTERFACES?======


**Symptoms:**

  * How do I configure the Internal Interfaces?

**Facts:**
  * High Availability  
  * X5  
  * X506  
  * X505  
  * Internal Interfaces  
 

**Causes:**

  * There is some confusion in both the Online Help and in the paper documentation over the configuration of the internal interfaces on a High Availability pair of X-family devices.  
 

**Fixes:** In an X-family HA pair, internal interface(s) that are in use for any purpose - even if only for HA communication between the two devices - should be configured as a Virtual Interfaces with shared IP address and HA IP address.
  
X-family devices in a High Availability pair can have internal interfaces with NAT enabled ("NAT'd") or NAT disabled (routed).  



   * Product(s):  X Family  
   * Sub Product(s): X5, X506  



 --- //[[nce@itclatam.com|David Gonzalez]] 2021/04/07 15:12//