But, without those changes, if I am trying to ping the board on which Zephyr is running, it is not responding to ping requests and wireshark capture in this scenario can be found in the attached file. I am unable to figure out where the mistake is happening. I have been trying in different ways but in vain. Is there any suggestions or check points to resolve this issue. Please help...

Thanks & Regards,
Giri Prasad N.