---
title: "Stream object data over a UDP broadcast connection"
canonical: "https://help.vicon.com/space/Tracker41/14322553/Stream%20object%20data%20over%20a%20UDP%20broadcast%20connection"
format: markdown
---
The UDP Object stream is a Vicon protocol for streaming simple object data over a UDP broadcast connection, for interaction with applications such as Simulink, in situations where using the TCP DataStream is not possible. (See also [Access Vicon Tracker data from Simulink](https://vicon-help.atlassian.net/wiki/spaces/Tracker41/pages/14320660).)  



## > Macro (anchor)

Specify UDP object streaming protocol properties

![image](media://61b4e9eb-680c-46df-a4e9-1e96705b296f)


    **To access the UDP object streaming protocol settings:**


1. On the **View menu**, ensure **Connections** is selected**.**
2. Within the Connections Panel, look at the **Output Settings** properties to find the **UDP**section.
3. At the top right of the section, ensure the **Advanced** properties are displayed.

You can view or change these UDP Object Streaming Protocol settings:

> Macro (scroll-tablelayout)

| **Setting** | **Description** |
| --- | --- |
| **Enabled** | If selected, starts the UDP streaming of data. Unlike the data stream, the UDP stream does not maintain client connection information. If selected, data is output whether or not there are any connected clients. |
| **Address** | The network address used to broadcast the data. |
| **Port** | The starting port for UDP streaming. If **Object Per Port** is selected, this is the starting port number. If **Object Per Port** is cleared, this is the output port for all objects. |
| **Block Size** | The size of the UDP datagrams (data blocks). Ensure the value selected matches the expected value for the datagram size in the client program.   
Options are 256, 512, and 1024. |
| **Object Per Port** | If cleared, all objects are output on the same port.   
If selected, each object is output on its own UDP port. Port assignments are made whether or not the object is active. |