Chapter 12 Configuring Inspection for Voice and Video Protocols

Skinny (SCCP) Inspection

•URI Length Criterion Values—Specifies to match a URI in the SIP headers greater than specified length.

–URI type—Specifies to match either SIP URI or TEL URI.

–Greater Than Length—Length in bytes.

•Multiple Matches—Specifies multiple matches for the SIP inspection.

–SIP Traffic Class—Specifies the SIP traffic class match.

–Manage—Opens the Manage SIP Class Maps dialog box to add, edit, or delete SIP Class Maps.

•Actions—Primary action and log settings.

–Action—Drop packet, drop connection, reset, log. Note: Limit rate (pps) action is available for request methods invite and register.

–Log—Enable or disable.

Skinny (SCCP) Inspection

This section describes SCCP application inspection. This section includes the following topics:

•SCCP Inspection Overview, page 12-32

•Supporting Cisco IP Phones, page 12-33

•Restrictions and Limitations, page 12-33

•Select SCCP (Skinny) Map, page 12-34

•SCCP (Skinny) Inspect Map, page 12-34

•Message ID Filtering, page 12-35

•Add/Edit SCCP (Skinny) Policy Map (Security Level), page 12-36

•Add/Edit SCCP (Skinny) Policy Map (Details), page 12-37

•Add/Edit Message ID Filter, page 12-38

SCCP Inspection Overview

Note For specific information about setting up the Phone Proxy on the ASA, which is part of the Cisco Unified Communications architecture and supports IP phone deployment, see Chapter 17, “Configuring the Cisco Phone Proxy.”.

Skinny (SCCP) is a simplified protocol used in VoIP networks. Cisco IP Phones using SCCP can coexist in an H.323 environment. When used with Cisco CallManager, the SCCP client can interoperate with H.323 compliant terminals.

The ASA supports PAT and NAT for SCCP. PAT is necessary if you have more IP phones than global IP addresses for the IP phones to use. By supporting NAT and PAT of SCCP Signaling packets, Skinny application inspection ensures that all SCCP signalling and media packets can traverse the ASA.

Cisco ASA Series Firewall ASDM Configuration Guide

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Cisco Systems ASA 5555-X, ASA 5505, ASA 5545-X, ASA 5585-X, ASA 5580 Skinny Sccp Inspection, Sccp Inspection Overview, 12-32
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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.
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