Cisco Cisco Firepower Management Center 4000

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FireSIGHT System User Guide
 
Chapter 12      Using NAT Policies
  Working with Different Types of Conditions in NAT Rules
Caution
If a port object or object group is being used by a NAT rule, and you change or delete the object or group, 
it can cause the rule to become invalid.
You can add any of the following kinds of port conditions to a NAT rule:
  •
individual and group port objects that you have created using the object manager
See 
 for information on creating individual and group port 
objects using the object manager.
  •
individual port objects that you add from the Destination Ports conditions page, and can then add to 
your rule and to other existing and future rules
See 
 for more information.
  •
literal port values, consisting of a TCP, UDP, or All (TCP and UDP) transport protocol and a port
See 
 for more information.
The following procedure explains how to add port conditions while adding or editing a NAT rule. See 
 for more detailed 
information.
To add destination port conditions to a NAT rule:
Access: 
Admin/Network Admin
Step 1
Select the 
Destination Port
 tab on the rule Edit page.
The Destination Port page appears.
Step 2
Optionally, click the 
Search by name or value
 prompt above the 
Available Ports
 list, then type a name or 
value.
The list updates as you type to display matching conditions. See 
 for more information.
Step 3
Click a condition in the 
Available Ports
 list. Use the Shift and Ctrl keys to select multiple conditions, or 
right-click to select all conditions. Note that you can add a maximum of 50 conditions.
Conditions you select are highlighted.
Step 4
You have the following choices:
  •
Click 
Add to Original
 to add the selected port to the Original Ports list.
  •
Click 
Add to Translated
 to add the selected port to the Translated Ports list.
  •
Drag and drop available ports into a list.
Step 5
Optionally, to create and add an individual port object click the add icon (
) above the 
Available Ports
 
list.
You can identify a single port or a port range in each port object that you add. You can then select objects 
you added as conditions for your rule. See 
 for more 
information.
For static rules, you can use only port objects with single ports.
Step 6
Optionally, to add a literal port select an entry from the 
Protocol
 drop-down list beneath the 
Original Port
 
or 
Translated Port
 lists. 
Enter a port, then click 
Add
. You can specify a port number from 0 through 65535. For dynamic rules, 
you can specify a single port or a range.