Secure Firewall 1210/20 Threat Defense Getting Started: Firewall Management Center at a Central Headquarters

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Configure NAT

Updated: February 5, 2026

Overview

Configure Port Address Translation (PAT) for inside clients.

This procedure creates a NAT rule for internal clients to convert the internal addresses to a port on the outside interface IP address. This type of NAT rule is called interface Port Address Translation (PAT).

Procedure

1.

Choose Devices > NAT, and click New Policy.
2.

Name the policy, select the devices that you want to use the policy, and click Save.

Figure 1. New Policy
New Policy

The policy is added the Firewall Management Center. You still have to add rules to the policy.

Figure 2. NAT Policy
NAT Policy
3.

Click Add Rule.
4.

Configure the basic rule options:

Figure 3. Basic Rule Options
Basic Rule Options

  • NAT Rule—Choose Auto NAT Rule.

  • Type—Choose Dynamic.
5.

On the Interface Objects page, add the outside zone from the Available Interface Objects area to the Destination Interface Objects area.

Figure 4. Interface Objects
Interface Objects
6.

On the Translation page, configure the following options:

Figure 5. Translation
Translation

  • Original Source—Click Add (add icon) to add a network object for all IPv4 traffic (0.0.0.0/0).

    Figure 6. New Network Object
    New Network Object
    Note

    You cannot use the system-defined any-ipv4 object, because Auto NAT rules add NAT as part of the object definition, and you cannot edit system-defined objects.

  • Translated Source—Choose Destination Interface IP.
7.

Click Save to add the rule.

The rule is saved to the Rules table.
8.

Click Save on the NAT page to save your changes.