Konfigurations- og fejlfindingsmanual til Cisco Firepower Threat Defense (FTD)

Indledning

This manual provides comprehensive guidance on configuring and troubleshooting the Cisco Firepower Threat Defense (FTD) system. It covers best practices for deploying and managing FTD on various platforms, including Cisco ASA, Cisco Firepower security appliances, Firepower eXtensible Operating System (FXOS), and VMware virtual appliances.

The content is designed for cybersecurity consultants, service providers, channel partners, and security professionals seeking to protect networks from cyber threats using Cisco Firepower's next-generation security technologies.

Figure 1: Front cover of the Cisco Firepower Threat Defense (FTD) manual.

Key Concepts and Architecture

Understanding the foundational architecture of Cisco Firepower technologies is crucial for effective deployment and management. This section outlines the core components and their interactions.

• Cisco Firepower NGFW: Next-Generation Firewall capabilities for advanced traffic filtering and control.
• Cisco Firepower NGIPS: Next-Generation Intrusion Prevention System for detecting and preventing known and unknown threats.
• Avanceret malwarebeskyttelse (AMP): Provides advanced threat detection, sandboxing, and retrospective security for file analyse.
• Firepower Management Center (FMC): Centralized management console for FTD devices.
• Firepower eXtensible Operating System (FXOS): The underlying operating system for Firepower security appliances.

Deployment and Initial Configuration

This section details the steps required to deploy and initially configure Cisco FTD systems across various environments.

1. FTD Deployment: Instructions for deploying FTD on Cisco ASA platforms, Firepower appliances running FXOS, and VMware virtual appliances.
2. FMC Configuration: Steps to configure and troubleshoot the Firepower Management Center.
3. Virtual Appliance Setup: Planning and deployment of FMC and FTD on VMware virtual appliances.
4. Management Network Design: Guidelines for designing and implementing the Firepower management network on FMC and FTD.
5. Licensing and Registration: Procedures for understanding and applying Firepower licenses, and registering FTD devices with FMC.
6. Deployment Modes: Configuration of FTD in Routed, Transparent, Inline, Inline Tap, and Passive Modes.

Operational Best Practices

Effective operation of Cisco FTD involves implementing various security features and managing network traffic according to best practices.

• Traffic Flow Management: Managing traffic flow using detect-only, block, trust, and bypass operations.
• Rate Limiting and QoS: Implementing rate limiting and analyzing Quality of Service (QoS).
• Security Intelligence: Blacklisting suspicious IP addresses via Security Intelligence.
• DNS Security: Blocking DNS queries to malicious domains.
• URL Filtrering: Filtrering URLs based on category, risk, and reputation.
• Network Discovery and AVC: Discovering networks and implementing Application Visibility and Control (AVC).
• Avanceret malwarebeskyttelse (AMP): Styrende file transfers and blocking malicious files bruger AMP.
• Forebyggelse af indtrængen: Halting cyber attacks using Snort-based intrusion rules.
• Netværksadresseoversættelse (NAT): Masquerading internal host's original IP addresses using NAT.

Fejlfinding og diagnostik

This section provides techniques and tools for diagnosing and resolving issues within the Cisco Firepower Threat Defense environment.

• Traffic Capture: Capturing traffic and obtaining troubleshooting files for advanced analysis.
• Command-Line Tools: Utilizing command-line tools to identify status, trace packet flows, analyze logs, and debug messages.
• FMC Troubleshooting: Specific techniques for troubleshooting issues related to the Firepower Management Center.

Specifikationer

This section provides detailed specifications for the manual itself.

Figure 2: Back cover detailing the book's scope and author information.