> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/configuration/web-portal-3-3/hardware/nat/create-internal-nat.md).

# Create an Internal NAT

> **Applies to:** Tmedia 3.0, 3.2, 3.3; SBC 3.1, 3.3

One or more internal NATs can be configured to manage internal IP connections.

### To configure an Internal NAT

1. Select **NATs** from the navigation panel.

![CreateNatTraversal 0](https://docs.telcobridges.com/w/images/4/4a/CreateNatTraversal_0.png)

2. Click **Create New Internal NAT**.

![CreateInternalNat 0](https://docs.telcobridges.com/w/images/3/3a/CreateInternalNat_0.png)

3. Configure the following fields:

* Enter a name for the internal NAT.
* Select the Gateway IP Address of your internal NAT from **Local Gateway IP Interface**.
* Select the public IP from **Public Interface**.
* Click **Create**

![CreateInternalNat 1](https://docs.telcobridges.com/w/images/5/5a/CreateInternalNat_1.png)

4. Verify that the **Configuration was successfully created** message is displayed

![CreateInternalNat 2](https://docs.telcobridges.com/w/images/b/b0/CreateInternalNat_2.png)

**Path**

```
/configurations/@[configuration_name]/internal_nats/@[internalNat_name]
```

**Parameters (text)**

```
/configurations/@[configuration_name]/internal_nats/@[internalNat_name]
local_ip_interface  = "@[hardware_name].@[vlan]"
name                = "@[internalNat_name]"
public_ip_interface = "@[hardware_name].@[vlan]"
```

**Parameters (json)**

```
{
  "local_ip_interface" : "@[hardware_name].@[vlan]",
  "name" : "@[internalNat_name]",
  "public_ip_interface" : "@[hardware_name].@[vlan]"
}
```

### List of Parameters

* [Name](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/m3ua#n)
* [Local Gateway IP Interface](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/ip-network#l)
* [Public Interface](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/ip-network#p)


---

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