---
name: "gnunet-nat-auto"
section: "1"
platform: "linux"
package: "gnunet"
version: "0.20.0-7"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gnunet-nat-auto"
---

# gnunet-nat-auto(1)

autoconfigure and test NAT traversal

## NAME

**gnunet-nat-auto** – autoconfigure and test NAT traversal

## SYNOPSIS

**gnunet-nat-auto** \[**-a** \| **--auto**\] \[**-c** *FILENAME* \| **--config=***FILENAME*\] \[**-S** *NAME* \| **--section=***NAME*\] \[**-t** \| **--tcp**\] \[**-u** \| **--udp**\] \[**-w** \| **--write**\]

## DESCRIPTION

**gnunet-nat-auto** allows testing various NAT traversal functions, as well as attempting auto-configuration. The options are as follows:

- **-a** \| **--auto**

  Attempt auto-configuration for NAT traversal.

- **-c** *FILENAME* \| **--config=***FILENAME*

  Use the configuration file *FILENAME*.

- **-S** *NAME* \| **--section=***NAME*

  Name of the configuration section with details about the configuration to test. For example "transport-tcp".

- **-t** \| **--tcp**

  Use TCP.

- **-u** \| **--udp**

  Use UDP.

- **-w** \| **--write**

  Write configuration to configuration file, useful in combination with auto-configuration (**-a**).

## EXAMPLES

### Automatic configuration:

```
# gnunet-nat-auto -aw
```

Probe and write result to configuration

### Test configuration:

```
# gnunet-nat-auto -t -S transport-tcp
```

Test TCP configuration

```
# gnunet-nat-auto -t -S transport-http
```

Test HTTP configuration

```
# gnunet-nat-auto -u -S transport-udp
```

Test UDP configuration

## SEE ALSO

[gnunet-nat(1)](/gnunet-nat/1.md), [gnunet-transport(1)](/gnunet-transport/1.md)

The full documentation for gnunet is maintained as a Texinfo manual. If the [info(1)](/info/1.md) and gnunet programs are properly installed at your site, the command

```
info gnunet
```

should give you access to the complete handbook,

```
info gnunet-c-tutorial
```

will give you access to a tutorial for developers.

Depending on your installation, this information is also available in gnunet(7) and gnunet-c-tutorial(7).

## BUGS

Report bugs by using **https://bugs.gnunet.org** or by sending electronic mail to ⟨*gnunet-developers@gnu.org*⟩.