Chapter 12 Configuring Inspection for Voice and Video Protocols

H.323 Inspection

Note You can enable call setup between H.323 endpoints when the Gatekeeper is inside the network. The ASA includes options to open pinholes for calls based on the RegistrationRequest/RegistrationConfirm (RRQ/RCF) messages. Because these RRQ/RCF messages are sent to and from the Gatekeeper, the calling endpoint's IP address is unknown and the ASA opens a pinhole through source IP address/port 0/0. By default, this option is disabled. You can enable this option by setting the option in the H.323 Inspect Map.

•Call Attributes—Tab that lets you configure call attributes parameters for the H.323 inspect map.

–Enforce call duration limit—Enforces the absolute limit on a call. Call Duration Limit—Time limit for the call (hh:mm:ss).

–Enforce presence of calling and called party numbers—Enforces sending call party numbers during call setup.

•Tunneling and Protocol Conformance—Tab that lets you configure tunneling and protocol conformance parameters for the H.323 inspect map.

–Check for H.245 tunneling—Allows H.245 tunneling. Action—Drop connection or log.

–Check RTP packets for protocol conformance—Checks RTP/RTCP packets on the pinholes for protocol conformance.

Limit payload to audio or video, based on the signaling exchange—Enforces the payload type to be audio or video based on the signaling exchange.

•HSI Group Parameters—Tab that lets you configure an HSI group.

–HSI Group ID—Shows the HSI Group ID.

–IP Address—Shows the HSI Group IP address.

–Endpoints—Shows the HSI Group endpoints.

–Add—Opens the Add HSI Group dialog box to add an HSI group.

–Edit—Opens the Edit HSI Group dialog box to edit an HSI group.

–Delete—Deletes an HSI group.

•Inspections—Tab that shows you the H.323 inspection configuration and lets you add or edit.

–Match Type—Shows the match type, which can be a positive or negative match.

–Criterion—Shows the criterion of the H.323 inspection.

–Value—Shows the value to match in the H.323 inspection.

–Action—Shows the action if the match condition is met.

–Log—Shows the log state.

–Add—Opens the Add H.323 Inspect dialog box to add an H.323 inspection.

–Edit—Opens the Edit H.323 Inspect dialog box to edit an H.323 inspection.

–Delete—Deletes an H.323 inspection.

–Move Up—Moves an inspection up in the list.

–Move Down—Moves an inspection down in the list.

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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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