LarkXR Turn: Built-in TURN Proxy for Rendering Nodes

![](https://docs.paraverse.cc/media/202504/ab60b2a9664b4a9f8f425e28da10b84e3259.png)

## Overview

LarkXR Turn is a built-in TURN (Traversal Using Relays around NAT) proxy solution. It enables rendering nodes without public IP addresses to forward traffic through the management node, allowing external clients to reach them normally.

**Applicable Scenario:** The management node has a public IP address, but rendering nodes do not. Both nodes are within the same local area network (LAN).

## How It Works

The management node runs a built-in TURN service. Rendering nodes connect to this TURN service and relay their traffic to the external network through the management node. This removes the requirement for each rendering node to have its own public IP.

## Deployment Guide

### Windows

**Step 1: Enable proxy on the management node**

Open the startup manager of the management node and enable the proxy option.

**Step 2: Enable the ICE service on the management node**

Edit `larkxr-center-windows/application.properties`:

```properties
pxy.ice.server.enable=true
```

**Step 3: Configure the rendering node to use the ICE server**

Edit `larkxr-render/application.properties`:

```properties
# TURN server URI (deployed alongside the management node, default port 13478)
pxy.ice.server.uri=turn:192.168.0.164:13478

# Username from the forwarding configuration (default: pxy)
# Can be changed via the `user=` field in turn/turnserver.conf
pxy.ice.server.username=pxy

# Password from the forwarding configuration (default: Pxy#12345)
# Can be changed via the `user=` field in turn/turnserver.conf
pxy.ice.server.password=Pxy#12345

# Force TURN relay (set to 1 to enforce relay mode)
pxy.ice.transport=1
```

**Step 4: Restart services**

Restart both the management node and rendering node services to apply the changes.