*filter
:INPUT ACCEPT [121:8012]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [64:6240]
-A INPUT -p icmp --icmp-type echo-request -j ACCEPT
-A INPUT -p icmp -j DROP
COMMIT

Type     Protocol     Source range     Source
All      ICMP All          N/A        0.0.0.0/0

71 packets transmitted, 0 received, 100% packet loss, time 69999ms

Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),