In an ICMP Flood Attack, attackers send highly-spoofed ICMP packets at large enough volumes to flood a network. The victim’s network resources are overwhelmed by the large number of incoming ICMP packets. The attack consumes resources and available bandwidth, exhausting the network until it goes offline. ICMP floods can overwhelm a network with packets containing random or fixed source IP addresses. This attack is often viewed as a Network-Level volumetric attack and can be defeated by L3/L4 Packet Filtering.
