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# Multicast Settings

By enabling Multicast, a GigE Vision camera can be accessed through multiple Softwares. This is especially useful when a camera needs to be accessed by different end users. Before that, you need to configure roles for the Softwares to specify different permission for them to access different cameras.

Note:

- Multicast configuration is only available for GigE Vision cameras.

- Multicast configuration should be supported by the GigE Vision camera.

For different cameras, a Software can be configured with different roles to access them. In other words, the end user of a Software can have different permissions to access different cameras. The following roles are available:

Table 1 Role Description
Role | Description
--- | ---
Controller and Data Receiver | The camera's features are editable, and the Software can receive camera data to display live image.
Controller | The camera's features are editable, but the Software cannot receive camera data to display live images.
Data Receiver | The camera's features are NOT editable, but the Software can receive camera data to display live images. Note: You cannot set the role of a Software as Data Receiver manually. Multiple Softwares can be Data Receiver of the same camera.

Note:

- For one camera, only one Software can be the role of "Controller and Data Receiver" or "Controller".

- You can configure Multicast for a camera only when the role is set to "Controller and Data Receiver" or "Controller".

- For the Softwares running on the same PC, one of them can only be configured as "Controller" and the others as "Data Receiver".