currently my ip is 192.168.0.10 i wanted to change the ip when i change the ip to 10.8.30.105 i dont get my packets deliverd when i see in wireshark i get arp request packet. can some one help me with the problem

i trying to receive a structure and send a structure back to originator but i cant see any packets going in and out in wireshark but if i receive it receives continously where ever i want to send a packet on receiption the problem occurs can some on...

i have tried to generate the lwip code using cubemx for stm32h743zi nucleo but getting .can some one help mw with .ioc file to create a basic lwip program.i have attached the error that iam getting

i want to send a udp packet usig lwip im new to stm can anyone help me out