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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

1002	400002	IP options-Timestamp	Informational	Triggers on receipt of an IP datagram where
				the IP option list for the datagram includes
				option 4 (Timestamp).

1003	400003	IP options-Security	Informational	Triggers on receipt of an IP datagram where
				the IP option list for the datagram includes
				option 2 (Security options).

1004	400004	IP options-Loose Source Route	Informational	Triggers on receipt of an IP datagram where
				the IP option list for the datagram includes
				option 3 (Loose Source Route).

1005	400005	IP options-SATNET ID	Informational	Triggers on receipt of an IP datagram where
				the IP option list for the datagram includes
				option 8 (SATNET stream identifier).

1006	400006	IP options-Strict Source Route	Informational	Triggers on receipt of an IP datagram in
				which the IP option list for the datagram
				includes option 9(Strict Source Routing).

1100	400007	IP Fragment Attack	Attack	Triggers when any IP datagram is received
				with an offset value less than 5 but greater
				than 0 indicated in the offset field.

1102	400008	IP Impossible Packet	Attack	Triggers when an IP packet arrives with
				source equal to destination address. This
				signature will catch the so-called Land
				Attack.

1103	400009	IP Overlapping Fragments (Teardrop)	Attack	Triggers when two fragments contained
				within the same IP datagram have offsets that
				indicate that they share positioning within the
				datagram. This could mean that fragment A is
				being completely overwritten by fragment B,
				or that fragment A is partially being
				overwritten by fragment B. Some operating
				systems do not properly handle fragments that
				overlap in this manner and may throw
				exceptions or behave in other undesirable
				ways upon receipt of overlapping fragments,
				which is how the Teardrop attack works to
				create a DoS.

2000	400010	ICMP Echo 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 0 (Echo Reply).

2001	400011	ICMP Host Unreachable	Informational	Triggers when an 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 3 (Host Unreachable).

Cisco ASA Series Firewall ASDM Configuration Guide

ASA Services Module, ASA 5555-X, 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.

Cisco Systems ASA 5545-X, ASA 5505, ASA 5555-X, ASA 5585-X, ASA 5580, ASA Services Module manual 28-7

Models: ASA Services Module ASA 5555-X ASA 5545-X ASA 5585-X ASA 5580 ASA 5505

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Cisco ASA Series Firewall ASDM Configuration Guide

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