What is the most likely cause of this?

While performing a ping sweep of a local subnet you receive an ICMP reply of Code 3/Type 13 for all the pings you have sent out.

What is the most likely cause of this?
A . The firewall is dropping the packets
B . An in-line IDS is dropping the packets
C . A router is blocking ICMP
D . The host does not respond to ICMP packets

View Answer

Answer: C