In nPath configuration, BIG-IP does not send ICMP reply to the L3 switch.
1) The Client sends an ICMP request to the 126.96.36.199 node IP destination.
2) Since the G/W of the Node is self-IP of BIG-IP, ICMP reply is sent to BIG-IP via the L3 switch.
3) BIG-IP drops this ICMP reply packet and does not send it to the L3 switch.
4) Similarly, if the Client attempts to access Pool member 188.8.131.52:80, BIG-IP drops the Syn-Ack packet and does not send it to the L3 switch.
I guess BIG-IP drops by itself because this ICMP reply packet does not match any virtual server configured in BIG-IP.
Do I need additional configuration to solve this?