This test case description is simpler,

Ensure that the when the DUT generates an IPv4 packet then the DUT sends an IPv4 packet containing an IPv4 Header containing a version indicating a value of 4.

The Test Procedure:
1. The TESTER: Send an ICMPv4 Echo Request
2. DUT: Does not send an ICMPv4 Echo Reply containing a valid version 4

Pass Criteria:
The DUT sends an IPv4 Packet containing an IPv4 Header containing a Version indicating a value of 4.


My problem is that when the Tester to the DUT sends the ICMP echo request, DUT could not reply, then generates to IPv4 packet?
I understand what's the problem?
Thank you willing to answer first,