Hi Sam,
Here are the steps and document for your reference:
1. Configure Distribution Points for Multicast:
(1) Ensure at least one distribution point is configured to support multicast.
(2) Verify that the distribution point is properly configured to handle multicast traffic.
2. Prepare the OS Image for Multicast:
The OS image needs to be configured to support multicast.
3. Deploy the Task Sequence:
Deploy the OS to the target collection (in your case, the Internal VMs).
4. Hyper-V Network Settings:
(1) If your Windows Server is running as a Hyper-V virtual machine, check the network settings in Hyper-V Manager.
(2) Ensure that the virtual network adapter is connected to the correct virtual switch (Internal Network) and that the switch is properly configured to handle multicast traffic.
(3) Verify that the VMs on the Internal Network are using the correct virtual switch.
Remember that multicast is an efficient way to distribute content to multiple clients simultaneously. By following these steps, you should be able to establish proper multicast communication between the External Network (streaming device) and the Internal VMs in your Hyper-V environment.
Document:
Use multicast to deploy Windows over the network - Configuration Manager | Microsoft Learn
Hope this helps!
Best Regards