Watchguard Firebox X15 User Manual page 172

Default Threat Protection
On the Firewall > Intrusion Prevention page, select the DoS Defense tab and set the packet/second
threshold for these types of DoS flood attacks:
IPSec flood attack
A DoS attack where the attacker overwhelms a computer system with a large number of IPSec
connections.
IKE flood attack
A DoS attack where the attacker overwhelms a computer system with a large number of IKE (Internet
Key Exchange) connections.
ICMP flood attack
A DoS attack where the attacker overwhelms a computer system with ICMP Echo Request (ping
packets).
SYN flood attack
A DoS attack where the attacker overwhelms a computer system with a large number of SYN
requests.
UDP flood attack
A DoS attack where the attacker overwhelms a computer system with a large number of UDP (User
Datagram Protocol) connections.
160 Firebox X Edge e-Series