Cisco Cisco FirePOWER Appliance 7115

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Version 5.3
Sourcefire 3D System User Guide
438
Using NAT Policies
Managing NAT Policies
Chapter 11
Applying a NAT Policy
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After making any changes to a NAT policy, you must apply the policy to one or 
more devices to implement the configuration changes on the networks 
monitored by the devices. You must target devices where you want to apply the 
policy before you can apply the policy. Se
page 423.
Keep the following points in mind when applying NAT policies:
You can configure and maintain multiple NAT policies on a Defense Center, 
but only one policy can be applied to a device at a time.
You can apply two different NAT policies to different devices, even though 
they are both targets for multiple policies.
You cannot apply a NAT policy to stacked devices running different versions 
of the Sourcefire 3D System (for example, if an upgrade on one of the 
devices fails). See 
 on page 280 for more 
information.
You cannot apply a new NAT policy with a policy apply already pending.
If you apply a device configuration that affects the interfaces in a NAT policy, 
the system reapplies the NAT policy on the device, including the interface 
changes. However, the policy remains unchanged on the DC and the 
interface displays an error icon (
).
IMPORTANT!
Applying an empty NAT policy removes all NAT rules from a device.
See the following sections for more information:
 on page 438 explains how to use the 
quick-apply option to apply the NAT policy.
 on page 439 explains how to select 
and apply configurations within the NAT policy.
Applying a Complete NAT Policy
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You can apply a NAT policy at any time. Applying a NAT policy also applies any 
associated rule configurations, objects, and policy changes to the devices 
targeted by the policy. A pop-up window allows you to apply all changes together 
as a single quick-apply action.