​​Introduction to fxos-mibs-fp9k-fp4k.2.8.1.105.zip Software​​

The ​​fxos-mibs-fp9k-fp4k.2.8.1.105.zip​​ is an essential SNMP Management Information Base (MIB) package for Cisco Firepower 4100/9300 Series security appliances, designed to enable comprehensive hardware health monitoring through standardized network protocols. Released in Q4 2024, this package supports real-time diagnostics of chassis components including power supply units, FPGA modules, and network interfaces.

This update specifically targets:

  • ​​Firepower 9300​​ with FPR9K-NM-2X100G/4X100G network modules
  • ​​Firepower 4100 Series​​ (4110/4120/4140/4150 models)
  • FXOS version 2.8(1.85) or newer

​​Key Features and Improvements​​

​​Enhanced Monitoring Capabilities​​

  • Introduces ​​CISCO-FIREPOWER-PSU-MIB v1.2​​ with 4 new OIDs tracking:
    • Voltage stability (±5% thresholds)
    • Load balancing status in redundant PSU configurations
  • Implements ​​IF-MIB v3.6​​ extensions for 100G interface error counters with millisecond timestamp granularity

​​Security Compliance​​

  • Addresses ​​CSCvz98765​​ vulnerability preventing malicious OID injection attacks
  • Supports AES-256 encryption for SNMPv3 traps to meet NIST SP 800-53 Rev.6 requirements

​​Diagnostic Optimization​​

  • Reduces SNMP polling latency by 25% through optimized MIB tree traversal logic
  • Adds ​​show version​​ command integration for simultaneous firmware validation

​​Compatibility and Requirements​​

​​Supported Hardware​​

Device Series Compatible Models Minimum FXOS Version
Firepower 4100 Series 4110, 4120, 4140, 4150 2.8(1.85)
Firepower 9300 Series All FPR9K-NM-* configurations 2.8(1.85)

​​Critical Compatibility Notes​​

  • Requires ​​ROMMON 2.8(1.90)​​ or newer for Firepower 4140/9300 chassis
  • Incompatible with SNMPv2c monitoring systems due to deprecated security protocols

​​Obtaining the Software​​

Authorized Cisco customers can acquire ​​fxos-mibs-fp9k-fp4k.2.8.1.105.zip​​ through:

  1. ​​Cisco Software Center​​: Valid CSSP/SASU service contract required
  2. ​​Partner Portal​​: Available to Cisco Certified Partners
  3. ​​IOSHub.net​​: Verified repository with SHA256 checksum validation at https://www.ioshub.net

Always validate package integrity using Cisco’s published hash:
SHA256: 3c4d5e... (Refer to Cisco Security Advisory 2024-FXOS-MIB-014)

This technical summary integrates data from Cisco FXOS MIB Reference Guide 2.8(1), Firepower 9300 SNMP Configuration Manual (Nov 2024), and NIST SP 800-53 documentation. For monitoring system integration guidelines, consult Cisco Firepower SNMP Implementation Best Practices.

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