Azure RTOS NetX multicast send failed

Hi guys
I want to implement a UDP Multicast send under STM32 STM32H7 ThreadX+NetX.

Basis.
1. UDP, TCP communication on H7 works fine.
2. Multicast Group on PC works fine.

Question.
1. using H7 Netx UDP to send data to this 244.3.30.56: 10000 IP group, the PC side can not receive data but using TCP /UDP is working fine.
2. try to let H7 join mutilcast or IGMP group, found that once join multicast, TCP, udp are disconnected, can not Ping through, even need to power off and restart to restore normal, once join multicast again will be disconnected.

The main purpose of using multicast is for devices to discover each other. Or you have other good ideas.

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TiejunZhou-7599 · May 07 at 01:24 AM

@ByronDong-3109 , could you capture the packets by wireshark or tcpdump on PC and share it with us? Let us know the MAC address of device and PC.

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asergaz TiejunZhou-7599 · May 13 at 02:49 PM

Hello @ByronDong-3109,

Could you share with us the information requested by @TiejunZhou-7599 to help us troubleshoot this issue?

Thank you so much!

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asergaz · May 02 at 10:58 AM

@ByronDong-3109 can you please share if you are using a specific sample I can follow? Are you using any of the samples here: https://github.com/azure-rtos/netx/tree/master/samples ?

Thank you!

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