wengzhe opened a new pull request, #12212:
URL: https://github.com/apache/nuttx/pull/12212

   ## Summary
   We found previous multicast support 
(https://github.com/apache/nuttx/pull/12015) harms some unicast situation, and 
the `udp_input` should not dup packets for unicast. Now, we only pass broadcast 
/ multicast packets into each listener and let the code under control of 
`CONFIG_NET_BROADCAST`.
   
   Ref: https://github.com/torvalds/linux/blob/v6.8/net/ipv4/udp.c#L2219
   
   ## Impact
   UDP input
   
   ## Testing
   iperf2 on Vela
   
   


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