> For the complete documentation index, see [llms.txt](https://docs.freeflysystems.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.freeflysystems.com/products/products/ember-camera/network-offloader.md).

# Network Offloader

The **Network Offloader** makes Ember footage available over a network share with 2.5 Gbps up-link. The solution uses a customized [OpenWrt](https://openwrt.org/) image for the **GL.iNet GL-MT2500 (Brume 2)** router.

***

### Setup

The Ember connects to the **MT2500** with **two cables.** The router connects to a Multi-Gig network backbone. 

<table><thead><tr><th width="162">Link</th><th width="267">From → To</th><th width="292">Purpose</th></tr></thead><tbody><tr><td><strong>USB 3.0 (MSC)</strong></td><td>Ember USB 3.0 → MT2500 USB</td><td>Ember <strong>USB Mass Storage (MSC)</strong> disk (exFAT) to be shared via <strong>WebDAV</strong>.</td></tr><tr><td><strong>1Gbps Ethernet</strong></td><td>Ember 1 GbE → MT2500 <strong>1 GbE</strong></td><td>Control &#x26; Status via App &#x26; API</td></tr><tr><td><strong>2.5Gbps Ethernet</strong></td><td>MT2500 <strong>2.5 GbE</strong> → Network</td><td>Multi-Gig network backbone uplink</td></tr></tbody></table>

```mermaid
flowchart LR
    Ember["Ember<br/>Camera"]
    Router["Router<br/>GL-MT2500"]
    Client["Network<br/>Workstation"]

    Ember -- "USB 3.0 (MSC) <br/> Footage" --> Router
    Ember -- "Ethernet 1 GbE <br/> Control & Status" --> Router
    Router -- "Ethernet 2.5 GbE" --> Client
```

### Network configuration

The default configuration is a fixed network setup:

* **Both Ethernet ports are bridged** (`br-lan` = `eth0` + `eth1`) with a static IP of **`192.168.1.1/24`**.
* The router (`br-lan`) will request an address over DHCP as to support multiple units on the network.

### Network Share (WebDAV)

Ember USB Disk is mounted, as read-only, at `/webdav/ember`. The router shares `/webdav` as a WebDAV network share: `http://192.168.1.1:5005/` without authentication nor encryption. When the camera is powered off or recording, there will be `/webdav/ember` will not be present.

#### WebDAV Command Line

Check the share and list the camera's files:

```sh
curl -X PROPFIND -H "Depth: 1" http://192.168.1.1:5005/
curl -X PROPFIND -H "Depth: 1" http://192.168.1.1:5005/ember
```

Download a clip:

```sh
curl -O http://192.168.1.1:5005/ember/A010_280618_C008.mov
wget --show-progress http://192.168.1.1:5005/ember/A010_280618_C008.mov -O A010_280618_C008.mov
```

#### ⚠️ Windows: use a third-party WebDAV client (not a mapped drive)

Windows' built-in WebDAV redirector is **not suitable for Ember footage**: it enforces a default per-file size limit of **\~50 MB** (registry-tunable) and a **hard 4 GB** ceiling. Ember clips are **25 GB – 200 GB**, far beyond that.

Use a dedicated WebDAV client instead — [**WinSCP**](https://winscp.net/) is recommended; it speaks WebDAV directly and handles the large files without the redirector's limits.

### OpenWRT Image

The [**freefly-systems/ember-network-offloader**](https://github.com/freefly-systems/ember-network-offloader) repository contains the OpenWRT customization for the Network Offloader solution. Pre-built image for **GL.iNet GL-MT2500** is available. See [**GitHub Releases**](https://github.com/freefly-systems/ember-network-offloader/releases).

#### Updating MT2500

:exclamation:Configure your system with IP 192.168.8.10 to access the GL.iNet interface at 192.168.8.1.

Boot and setup MT2500 with a root password. Once login, go to SYSTEM → Advanced Settings → Go To LuCI.&#x20;

<figure><img src="/files/h9DFGdhK8M6jTIxkmVzr" alt="" width="563"><figcaption></figcaption></figure>

Login with the root password from setup. Go to System → Backup / Flash Firmware → Flash New Firmware Image. Select the image based on your router.

* GL-MT2500 (ABS) tested with GL-MT2500 Airoha (Airoha PHY)
* GL-MT2500A (Aluminium) tested with GL-MT2500 (MaxLinear PHY)

<figure><img src="/files/i1gxVtIQCT0kM7ire2mH" alt="" width="563"><figcaption></figcaption></figure>

Do not keep settings, as the image provide a whole new configuration.

<figure><img src="/files/4wNJOOHraC17usjuyfcl" alt="" width="563"><figcaption></figcaption></figure>

:exclamation:Configure your system with IP 192.168.1.10 to access the OpenWRT interface at 192.168.1.1.

Login in OpenWRT without any password.

<figure><img src="/files/4o0HuzH8yKvmmS2EHDJp" alt="" width="563"><figcaption></figcaption></figure>

Once connected, Ember disk will be reported in storage section.

<figure><img src="/files/9ijWTJTDuqAni3Z4elbF" alt="" width="563"><figcaption></figcaption></figure>


---

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