Will FMC managment of FTD4110 work normally if I change IP addresses of both? (and change settings accordingly)

[cheumoua1]

I have FMC and FTD4110 in DEV environment. I have to change both of their IP addresses in production.  Can i just re-IP, and put onto the production network ?

[Marvin Rhoads]

You will need to delete and re-add the manager from the device side as well as remove and replace the device in the manager. Then redeploy policy.

[cheumoua1]

1.  Will I need to reconfigure HA, etc. ?

2. For clarity, I am NOT change physical port interfaces.... I am just assigning new IP addresses.

[Marvin Rhoads]

I believe you will have to re-establish HA. FMC linked to the devices and both ends established their respective sftunnel based on the system IP addresses. Changing those addresses leads both ends to believe it is a new device it is communicating with so you need to manually tell FMC how to treat the "new" device (ie.e just like the old ones - an HA pair with certain policy applied).

You might consider opening a TAC case for verification.