Pings with a size > MTU fail

Issue

• We have two nodes, a node 1 and a node 2. node 2 can ping to node 1 when the MTU is greater than 1500, but node 1 cannot ping node 2 in this same scenario.

node 1 -> node 2  = failure
node 2 -> node 1  = success

• We can see this in the packet captures where node2 is receiving the fragmented ICMP echo request, but ignores them from the node1 host.
• The command we are using is $ ping -s 1500 <node 2 IP> -c 10000
• Data packets containing size greater than 1500 bytes(or MTU) is received but are not forwarded further.