Cisco Cisco Firepower Management Center 4000 Release Notes

Version 5.2.0.2

Sourcefire 3D System Release Notes

11

Updating Your Appliances

15. Reapply device configurations to all managed devices.

To reactivate a grayed-out Apply button, edit any interface in the device 

configuration, then click Save without making changes.

16. Reapply access control policies to all managed devices.

Do not reapply intrusion policies individually; you must reapply 

all access control policies completely.

Applying an access control policy may cause a short pause in traffic flow and 

processing, and may also cause a few packets to pass uninspected. For more 

information, see the Sourcefire 3D System User Guide.

Updating Managed Devices

After you update your Defense Centers to Version 5.2.0.2, use them to update 

the devices they manage.
Updating managed devices is a two-step process. First, download the update 

from the Support Site and upload it to the managing Defense Center. Next, install 

the software. You can update multiple devices at once, but only if they use the 

same update file.
For the Version 5.2.0.2 update, managed devices reboot. Managed devices do 
not perform traffic inspection, switching, routing, NAT, VPN, or related functions 

during the update. Depending on how your devices are configured and deployed, 

the update process may also affect traffic flow and link state. For more 

information, see 

 on page 3.

Before you update a managed device, use its managing Defense 

Center to reapply the appropriate access control policy. Otherwise, the managed 

device update may fail.

Do not reboot or shut down your appliances during the update until 

after you see the login prompt. The system may appear inactive during the 

pre-checks portion of the update; this is expected behavior and does not require 

you to reboot or shut down your appliances.

To update managed devices:

1. Read these release notes and complete any required pre-update tasks.

For more information, see 

 on page 2 and