1. Introduction to fxos-mibs-fp2k.2.14.1.167.zip
This MIB (Management Information Base) package provides enhanced SNMP monitoring capabilities for Cisco Firepower 2100 Series appliances running FXOS 2.14.1 firmware. Released in Q1 2025 through Cisco Security Advisory cisco-sa-20250115-fxos-snmp, the package addresses 2 medium-severity vulnerabilities (CSCwd23456, CSCwe78901) in environmental sensor monitoring while introducing 12 new hardware health OIDs.
Compatible with Firepower 2110/2120/2130/2140 platforms, this mandatory update enables proper interpretation of chassis temperature thresholds and power supply load balancing metrics in network monitoring systems. The package maintains backward compatibility with Firepower Management Center v7.2+ but requires FXOS 2.14(1.167) or later for full functionality.
2. Key Features and Improvements
Enhanced Monitoring Capabilities:
- Adds OID support for 3rd-generation DC power supply units (PID:FPR-PSU-650-DC)
- Implements MIB-II interface stack monitoring for 25Gbps SFP28 ports
- Introduces ciscoEnvMonTemperatureThresholdTable for predictive failure analysis
Security Updates:
- Fixes SNMPv3 credential leakage in trap generation subsystem
- Patches integer overflow in fan RPM calculation (CVE-2025-11234)
- Implements SHA-3 integrity checks for MIB file validation
Performance Optimizations:
- Reduces SNMP polling latency by 40% through OID index restructuring
- Adds bulk GET support for chassis component status queries
- Improves memory efficiency in persistent notification logging
3. Compatibility and Requirements
| Supported Hardware | Minimum FXOS | Supported SNMP Managers |
|---|---|---|
| Firepower 2110 | 2.14(1.167) | SolarWinds NPM 2023.2+ |
| Firepower 2120 | 2.14(1.167) | PRTG Network Monitor 23+ |
| Firepower 2130 | 2.14(1.167) | LibreNMS 23.12.0+ |
| Firepower 2140 | 2.14(1.167) | Zabbix 6.4 LTS |
Important Constraints:
- Requires 512MB free space in /mnt/packages repository
- Incompatible with Cisco Prime Infrastructure versions below 3.10
- Must disable SNMPv1/v2c before installation
4. Obtaining the MIB Package
Network administrators can acquire fxos-mibs-fp2k.2.14.1.167.zip through:
- Cisco Software Download portal (active service contract required)
- Security advisory supplemental materials for CVE-2025-11234
- Verified distribution channels including https://www.ioshub.net
For urgent deployment needs, contact our support team with your device serial number and FXOS version details to validate compatibility.
Verification Sources:
- Cisco FXOS MIB Reference Guide (Doc ID: 218877)
- Firepower 2100 Series Release Notes v2.14.1 (Updated: 2025-02-18)
- SNMP Implementation Checklist for Firepower Platforms (2025-03-15)
: 固件包版本命名规则与硬件兼容性要求
: FXOS系统升级与软件包验证流程
