Cisco ASA 5555-X Configuration Guide

18-4
Cisco ASA Series Firewall CLI Configuration Guide
Chapter 18 Threat Detection
Defaults for Threat Detection
Defaults for Threat Detection
Basic threat detection statistics are enabled by default.
The following table lists the default settings. You can view all these default settings using the show
running-config all threat-detection command.
For advanced statistics, by default, statistics for ACLs are enabled.
Configure Threat Detection
Basic threat detection statistics are enabled by default, and might be the only threat detection service that
you need. Use the following procedure if you want to implement additional threat detection services.
Table 18-2 Basic Threat Detection Default Settings
Packet Drop Reason
Trigger Settings
Average Rate Burst Rate
• DoS attack detected
• Bad packet format
• Connection limits exceeded
• Suspicious ICMP packets
detected
100 drops/sec over the last 600
seconds.
400 drops/sec over the last 20
second period.
80 drops/sec over the last 3600
seconds.
320 drops/sec over the last 120
second period.
Scanning attack detected 5 drops/sec over the last 600
seconds.
10 drops/sec over the last 20
second period.
4 drops/sec over the last 3600
seconds.
8 drops/sec over the last 120
second period.
Incomplete session detected such as
TCP SYN attack detected or UDP
session with no return data attack
detected (combined)
100 drops/sec over the last 600
seconds.
200 drops/sec over the last 20
second period.
80 drops/sec over the last 3600
seconds.
160 drops/sec over the last 120
second period.
Denial by ACLs 400 drops/sec over the last 600
seconds.
800 drops/sec over the last 20
second period.
320 drops/sec over the last
3600 seconds.
640 drops/sec over the last 120
second period.
• Basic firewall checks failed
• Packets failed application
inspection
400 drops/sec over the last 600
seconds.
1600 drops/sec over the last 20
second period.
320 drops/sec over the last
3600 seconds.
1280 drops/sec over the last 120
second period.
Interface overload 2000 drops/sec over the last
600 seconds.
8000 drops/sec over the last 20
second period.
1600 drops/sec over the last
3600 seconds.
6400 drops/sec over the last 120
second period.

Cisco ASA 5555-X Specifications

General

Firewall Throughput	4 Gbps
Maximum Concurrent Sessions	1, 000, 000
Security Contexts	50
VPN Throughput	1.2 Gbps
RAM	8 GB
Storage	120 GB SSD
Power Supply	Dual, Hot-swappable
Form Factor	1RU
Interfaces	8 x 1 Gigabit Ethernet