Question - Multicast Network

Does anyone have knowledge and/or experience with the setup of a multicast network? If you do I could use your help. If you can help please contact me via direct message to discuss further.

Thank you much.

Ahoy there!

Is this in regard to Bonjour? mDNS?
What style of multicast network?

Be great to share it all in this forum so others could benefit.

Thank you.

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Oh gosh, If I knew the answer to that question I probably would not need to be here asking for networking help. LOL But all seriousness I do not know what I need or what style. Multicast networking is completely new to me.

The project I am doing is not specific to Peplink equipment and I doubt it would be helpful to Peplink equipment owners to discuss my specific project/application on the forums. I just thought there might be someone here that can help me with a non “Peplink” related issue.

I am working with commercial two way radio repeaters that are internet network linked through site to site VPN connection using “unicast” configured network which allows up to a total of 16 repeaters to be linked. Changing over to a “multicast” network allows up to a total of 32 repeaters to be linked. I would like to change over to a “multicast” network but I do not know what equipment is needed or how to configure the network and equipment to make it work and the manufacturer of these repeaters will not help with networking and will only help with support of the equipment they manufacturer, they said “your on your own" with the networking part. I am seeking help from anyone who has experience knowledge working with multicast networks. If you can and willing to help me please contact me direct and we can discuss the details. Thank you.

Hello…

Just a comment…
Got from internet

" IP multicast traffic uses group addresses, which are class D addresses. The high-order bits of a Class D address are 1110. Therefore, host group addresses can be in the range 224.0.0.0 through 239.255.255.255. Multicast addresses in the range 224.0.0.0 to 24.0.0.255 are reserved for use by routing protocols and other network control traffic. The address 224.0.0.0 is guaranteed not to be assigned to any group.

IGMP packets are sent using these IP multicast group addresses:

•IGMP general queries are destined to the address 224.0.0.1 (all systems on a subnet).

•IGMP group-specific queries are destined to the group IP address for which the switch is querying.

•IGMP group membership reports are destined to the group IP address for which the switch is reporting.

•IGMP Version 2 (IGMPv2) leave messages are destined to the address 224.0.0.2 (all-multicast-routers on a subnet). In some old host IP stacks, leave messages might be destined to the group IP address rather than to the all-routers address. "

So… We (you, us, me) need to get a correct multicast address to begin the Peplink setup… at my side… I will have a meeting with customer that use multicast solution… so… It will be a good day to learn something from this customer… this way… I will try to setup at Peplink device… But… it will take some weeks.

Regards,

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hi…
some news…
Using Wireshark… We (customer and I) discover a network 239.255.0.1 udp port 7400 (dds)
so… using udp relay… we build a rule … for in and for out… both devices have same rule, just changing their networks and speedfusion destination.
Follow a sample from one side.

Screenshot 2024-09-10 at 19.30.23

Works great for this customer.

Wireshark sample…

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