> For the complete documentation index, see [llms.txt](https://docs.lightact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lightact.com/integrations/camera-and-object-tracking/node-based-tracking-workflows/spnet.md).

# SPNet

This device has additional **Multicast address** input. It is good to know that SPNet also offers object tracking.

### SPNet Receiver Device Node

To start receiving SPNet information insert a **SPNet Receiver** device.

![](https://3312042618-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9sVaJpWJhPbmscipukhh%2Fuploads%2Fgit-blob-78ffec541db8129a246d4433cf863ce58a2df422%2FSPNet%20camera%20device.png?alt=media)

On the right side, under the *Stream*, configurable properties for specific devices will be shown. After you configure them, check **Listen** checkbox inside the device node.

### Read SPNet in Layer Layouts

To use the information read by **SPNet Receiver** node in LightAct, you need to create a **Read SPNet** node in the layouts.

Choose **SPNet Receiver** device in a **Device** dropdown menu, or connect **Device reference** node to this input, and you are ready to go.

![](https://3312042618-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9sVaJpWJhPbmscipukhh%2Fuploads%2Fgit-blob-244fa5834e0983ba33c141185f36646ae34fe4a4%2FSPNet%20camera%20layer%20node.png?alt=media)