F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices System Management and Maintenance Configuration Guide-6PW100
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The output shows that Firewall A and Firewall B cannot reach other, Firewall A and Device can
reach each other, and an error occurred on the connection between Device and Firewall B.
# Use the debugging ip icmp command on Firewall A and Firewall B to verify that they can send
and receive the specific ICMP packets, or use the display ip routing-table command to verify the
availability of active routes between Firewall A and Firewall B.