Cisco Cisco Firepower Management Center 4000
12-29
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.
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
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
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.