Can't send UDP data to Multicast IP address

[CoderMad]

I have configured the UDP Custom Device for my project where the receiving IP (target) is multicast receiver. But, after deploying the project to target I could see an error in Error code Message channel. I have attached the error code in the attachment, please let me know if there is any fix or workaround available for this issue.

Regards,
Madan Mohan

[bogdanp-ni]

Hi @CoderMad,

Sure, we'll take a look. I haven't seen this error before, so unfortunately I cannot offer a good workaround yet.

[CoderMad]

Hi @bogdanp-ni,
I have reviewed the source code shared in this repo. I think in the Engine configuration part, you guys are using Protocols.lvlibp library for all the protocol level APIs. I think for the multicast transmission we might need to use 'UDP Multicast Open' instead of 'UDP open' in the initialization part (attached image below) based on the validation of the target IP range (224.0.0.0 through 239.255.255.255 for multicast). Due to this issue we couldn't able to transfer UDP data to Multicast addresses. Can you guys please check on this aspect and provide us a fix or any alternative workaround?

--Madan Mohan