> 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/telecom-references/sip-and-voip/enabling-local-nat-traversal.md).

# Enabling Local NAT Traversal

> **Applies to:** Tmedia 3.0, 3.2, 3.3

To enable Local NAT Traversal:

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

![EnableLocalNatTraversal 0](https://docs.telcobridges.com/w/images/7/7e/EnableLocalNatTraversal_0.png)

2- Click **Create New NAT Traversal**

![EnableLocalNatTraversal 1](https://docs.telcobridges.com/w/images/d/d1/EnableLocalNatTraversal_1.png)

3- Enter a meaningful name.

* Choose a Local Method.
* If necessary, provide an extra parameter.
* Click **Create**

![EnableLocalNatTraversal 2](https://docs.telcobridges.com/w/images/a/af/EnableLocalNatTraversal_2.png)

Once the NAT configuration is completed, it must be associated with a NAP.

3- Select **NAPs** from the navigation panel

![EnableLocalNatTraversal 3](https://docs.telcobridges.com/w/images/3/33/EnableLocalNatTraversal_3.png)

4- Select a SIP NAP from the **Network Access Point** list

![EnableLocalNatTraversal 4](https://docs.telcobridges.com/w/images/3/38/EnableLocalNatTraversal_4.png)

5- In the **Network Address Translation** section:

* Choose the desired "Local Method". The select box will contain the same name as the Local NAT configuration, that you provided in step #2.
* Click **Save**

![EnableLocalNatTraversal 5](https://docs.telcobridges.com/w/images/4/4a/EnableLocalNatTraversal_5.png)

The following describes the 2 Local NAT Traversal Methods:'''

**No NAT**

This method is used if you are not behind a NAT. This is the default value.

**Force Public IP**

This method will set some of the SIP Headers and SDP fields with the IP address that you set.

**Path**

```
/configurations/@[configuration_name]/naps/@[nap_name]/sip_cfg/network_address_translation
```

**Parameters (text)**

```
/configurations/@[configuration_name]/naps/@[nap_name]/sip_cfg/network_address_translation
local_method  = ""
remote_method = "None"
```

**Parameters (json)**

```
{
    "network_address_translation" : {
      "local_method" : "",
      "remote_method" : "None"
    }
  }
}
```

### Related actions

[Symmetric NAT traversal](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/sip-voip/nat-traversal/README.md)


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