Unable to send to a specific multicast address when sending UDP messages in OpenThread CLI sample

Hello,

I flashed an Thread CLI sample for nRF52840-DK and checking its operation. (nRF Connect SDK version is v2.3.0)
I use the "ot udp send" command to check the sending of UDP messages, but no logs were displayed in Sniffer even if I configured to send to a specific multicast address.
When the multicast address was FF02::1, the log was displayed in Sniffer, but when it was FF03::1 or FF04::3:0, it was not displayed in the log.
Although it was not mentioned in the README, am I correct in my understanding that the "ot udp send" command can only successfully send to certain authorized multicast addresses?

Best regards,

Yuma

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