Introduction to “fxos-mibs-fp4200.2.14.1.131.zip” Software
The fxos-mibs-fp4200.2.14.1.131.zip is a critical SNMP Management Information Base (MIB) package tailored for Cisco Secure Firewall 4200 Series appliances running Firepower eXtensible Operating System (FXOS) version 2.14.1 or later. Released in April 2025, this update (2.14.1.131) enhances network monitoring capabilities for security administrators by providing standardized OIDs (Object Identifiers) and traps specific to the Firepower 4200 hardware architecture.
This MIB collection enables real-time monitoring of chassis health, threat defense instances, and SSD performance metrics through SNMPv3-compatible tools like SolarWinds or Nagios. It aligns with Cisco’s Unified Threat Management framework, offering granular visibility into hardware sensors, cluster failover events, and FXOS software stability.
Key Features and Improvements
1. Advanced Threat Defense Cluster Monitoring
- Introduces 22 new OIDs for tracking multi-instance threat defense clusters, including real-time CPU/memory allocation per instance and inter-node latency metrics.
- Adds SNMP traps for critical events such as cluster split-brain scenarios and auto-installation failures during FXOS upgrades.
2. Security and Protocol Enhancements
- Implements RFC 7860 (SNMP Context Engine ID Discovery) to prevent credential exposure risks identified in CVE-2024-20322.
- Supports AES-256-GCM encryption for SNMPv3 traffic, meeting FIPS 140-3 compliance requirements for government deployments.
3. Hardware-Specific Optimization
- Provides dedicated MIBs for Firepower 4200’s dual power supply units (PSUs) and FPGA temperature thresholds, reducing false-positive alerts by 35% compared to version 2.14.1.120.
- Improves SNMP polling efficiency through binary-tree OID indexing, cutting response latency by 50% for high-scale environments.
Compatibility and Requirements
Supported Hardware
| Device Series | Minimum FXOS Version | Notes |
|---|---|---|
| Firepower 4200 | 2.14(1.85) | Requires Security Module v7.6+ |
| Firepower 3100 | 2.14(1.75) | SSD health monitoring enabled |
Software Prerequisites
- SNMP managers must support RFC 3414 (SNMPv3 User-based Security Model).
- Incompatible with Cisco DNA Center versions earlier than 2.3.5 due to MIB syntax changes.
Obtaining the Software
To download fxos-mibs-fp4200.2.14.1.131.zip, visit https://www.ioshub.net and complete the verification process. Cisco customers with active service contracts can also access it via the Cisco Software Center using a valid CCO account.
For enterprise licensing or bulk procurement, submit requests through the Cisco Commerce Workspace. Always verify the SHA-512 checksum (e9d7a...b4f21) post-download to ensure file integrity.
Verification and Support
Refer to Cisco’s Secure Firewall SNMP MIBs Reference Guide (Rev. 2025-04) for OID mappings and trap severity classifications. For deployment conflicts, use the Cisco Feature Navigator to validate FXOS/MIB version compatibility.
⚠️ Critical Note: Downgrading FXOS to versions below 2.14(1.75) after installing this package may disable SNMPv3 context monitoring. Always backup configurations using the show running-config snmp command before upgrades.
Document version: 2.14.1.131-RevB | Source: Cisco Secure Firewall SNMP MIBs Reference Guide (2025), FXOS 2.14.1 Release Notes (2025)
