The administrator wants to deny ICMP traffic from being forwarded. Which of the following commands would accomplish this?
A.
iptables -A FORWARD -p icmp -j DROP
B.
iptables -A FORWARD -a all -proto ICMP -j REJECT
C.
iptables -A FORWARD -p icmp -j DENY
D.
iptables -A FORWARD -p udp –dport icmp -j DROP
Correct answer is A