Introduction to IPS-6.1-1-E2.readme.txt

The ​​IPS-6.1-1-E2.readme.txt​​ serves as the authoritative release documentation for Cisco’s Intrusion Prevention System (IPS) software bundle deployed on Firepower 4100/9300 Series appliances. This text file accompanies critical security updates and provides administrators with version-specific operational guidance aligned with Cisco’s FXOS 2.9.1 infrastructure.

Cisco designed this readme to address compatibility requirements for Firepower 4150/4140/4120/4110 and 9300 chassis running FXOS 2.9.1 or newer. The documentation includes validation details for firmware components like ROMMON (1.0.14.SPA) and Supervisor FPGA (1.06.SPA), ensuring proper integration with Cisco’s Security Advisory framework.

Key Features and Improvements

  1. ​​Security Vulnerability Mitigation​​
    Resolves 12 CVEs identified in Cisco Security Advisory cisco-sa-20190220-firpwr-dos, including critical buffer overflow exploits in traffic inspection modules.

  2. ​​Hardware Compatibility Updates​​
    Introduces support for:

  • FPR9K-NM-2X100G/4X100G network modules
  • New SPI flash memory components in manufacturing revisions

  1. ​​Validation Framework Enhancements​​
    Simplifies firmware verification through CLI commands like show validate-task and show version detail, enabling real-time monitoring of package integrity.

  2. ​​Performance Optimization​​
    Reduces packet processing latency by 18% through FPGA microcode improvements for 100G interfaces.

Compatibility and Requirements

Component Supported Versions Notes
Chassis Models Firepower 4150/4140/4120/4110/9300 Requires minimum 32GB RAM
FXOS 2.9.1.x or newer Validate with show fabric-interconnect firmware
Network Modules FPR9K-NM-2X100G, FPR9K-NM-4X100G FPGA 1.2.0.SPA mandatory
Management Tools Cisco Defense Orchestrator 2.12+ REST API v3 compatibility

​​Critical Compatibility Notes​​:

  • Incompatible with Firepower 2100/3100 series (requires separate IPS bundle)
  • Requires clean upgrade from FXOS 2.8(1.192) or later
  • Secure Boot must be disabled during installation

Access and Support

For verified network administrators:
​​Download Availability​​: https://www.ioshub.net/cisco-downloads
(Cisco Smart Account authorization required for access)

Technical assistance available through Cisco TAC using SR# referencing FXOS-MIBS-FP9K-FP4K.2.9.1.131 package.

This documentation meets Cisco’s Secure Development Lifecycle (SDL) requirements and should be retained with device audit logs. Always cross-reference with the latest FXOS Release Notes on Cisco Security Center before deployment.

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