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Chapter 28 Using Protection Tools

Configuring IP Audit for Basic IPS Support

Table 28-1	Signature IDs and System Message Numbers (continued)

Signature	Message
ID	Number	Signature Title	Signature Type	Description

2008	400018	ICMP Timestamp Reply	Informational	Triggers when a IP datagram is received with
				the protocol field of the IP header set to 1
				(ICMP) and the type field in the ICMP header
				set to 14 (Timestamp Reply).

2009	400019	ICMP Information Request	Informational	Triggers when a IP datagram is received with
				the protocol field of the IP header set to 1
				(ICMP) and the type field in the ICMP header
				set to 15 (Information Request).

2010	400020	ICMP Information Reply	Informational	Triggers when a IP datagram is received with
				the protocol field of the IP header set to 1
				(ICMP) and the type field in the ICMP header
				set to 16 (ICMP Information Reply).

2011	400021	ICMP Address Mask Request	Informational	Triggers when a IP datagram is received with
				the protocol field of the IP header set to 1
				(ICMP) and the type field in the ICMP header
				set to 17 (Address Mask Request).

2012	400022	ICMP Address Mask Reply	Informational	Triggers when a IP datagram is received with
				the protocol field of the IP header set to 1
				(ICMP) and the type field in the ICMP header
				set to 18 (Address Mask Reply).

2150	400023	Fragmented ICMP Traffic	Attack	Triggers when a IP datagram is received with
				the protocol field of the IP header set to 1
				(ICMP) and either the more fragments flag is
				set to 1 (ICMP) or there is an offset indicated
				in the offset field.

2151	400024	Large ICMP Traffic	Attack	Triggers when a IP datagram is received with
				the protocol field of the IP header set to
				1(ICMP) and the IP length > 1024.

2154	400025	Ping of Death Attack	Attack	Triggers when a IP datagram is received with
				the protocol field of the IP header set to
				1(ICMP), the Last Fragment bit is set, and (IP
				offset * 8) + (IP data length) > 65535 that is
				to say, the IP offset (which represents the
				starting position of this fragment in the
				original packet, and which is in 8 byte units)
				plus the rest of the packet is greater than the
				maximum size for an IP packet.

3040	400026	TCP NULL flags	Attack	Triggers when a single TCP packet with none
				of the SYN, FIN, ACK, or RST flags set has
				been sent to a specific host.

3041	400027	TCP SYN+FIN flags	Attack	Triggers when a single TCP packet with the
				SYN and FIN flags are set and is sent to a
				specific host.

Cisco ASA Series Firewall CLI Configuration Guide

ASA 5555-X, and the ASA Services Module, ASA 5545-X, ASA 5585-X, ASA 5580 specifications

Cisco Systems has long been a leader in the field of network security, and its Adaptive Security Appliance (ASA) series is a testament to this expertise. Within the ASA lineup, models such as the ASA 5505, ASA 5580, ASA 5585-X, ASA 5545-X, and ASA 5555-X stand out for their unique features, capabilities, and technological advancements.

The Cisco ASA 5505 is designed for small businesses or branch offices. It provides essential security features such as firewall protection, flexible VPN capabilities, and intrusion prevention. The ASA 5505 supports a user-friendly interface, allowing for straightforward management. Its built-in threat detection and prevention tools provide a layered defense, and with scalability in mind, it can accommodate various expansion options as organizational needs grow.

Moving up the line, the ASA 5580 delivers greater throughput and advanced security features. This model is suited for medium to large enterprises that require robust protection against increasingly sophisticated threats. Its multi-core architecture allows it to manage high volumes of traffic seamlessly while maintaining excellent performance levels. The ASA 5580 also supports application-layer security and customizable access policies, making it highly adaptable to diverse security environments.

The ASA 5585-X further enhances Cisco's security offerings with advanced malware protection and extensive security intelligence capabilities. It incorporates next-generation firewall features, including context-aware security, and supports advanced threat detection technologies. This model is ideal for large enterprises or data centers that prioritize security while ensuring uninterrupted network performance and availability.

For enterprises requiring a balance of performance and security, the ASA 5545-X presents a compelling option. This model features scalable performance metrics, high availability, and integrated advanced threat protection. Coupled with advanced endpoint protection and detailed monitoring capabilities, the ASA 5545-X enables organizations to manage their security posture effectively.

Lastly, the ASA 5555-X blends cutting-edge technologies with strong security infrastructures. It boasts high throughput and the ability to execute deep packet inspections. Its sophisticated architecture supports threat intelligence feeds that provide real-time security updates, making it a powerful tool against modern threats.

Each of these Cisco ASA models brings specific advantages to varied environments. Their integrative capabilities enable businesses to enhance their security postures while benefiting from seamless scalability and management. As cybersecurity threats evolve, these advanced appliances play a vital role in protecting valuable digital assets.

Signature

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ASA 5555-X, and the ASA Services Module, ASA 5545-X, ASA 5585-X, ASA 5580 specifications