​Introduction to the FPR3K-XNM-6X10LRF=​

The ​​Cisco FPR3K-XNM-6X10LRF=​​ is a high-density network module designed for the Firepower 3100 and 9300 series, offering six 10 Gigabit Ethernet ports with SFP+ connectivity. Tailored for environments requiring ​​segmented threat inspection and encrypted traffic analysis​​, this module combines hardware-accelerated security with operational flexibility. Drawing from Cisco’s Firepower 3100 datasheets and verified supplier specifications, this article examines its technical architecture, deployment scenarios, and compliance advantages.


​Technical Specifications and Hardware Design​

The module integrates into Firepower chassis to expand port density without compromising threat prevention throughput:

  • ​Port Configuration​​: 6x10G SFP+ ports supporting ​​LR (10km) and ER (40km)​​ optics for long-haul deployments.
  • ​Throughput​​: ​​60 Gbps aggregate​​ with Snort 3.2 IPS and Application Visibility enabled.
  • ​Compatibility​​: Validated for ​​Firepower 3140, 3150, 9300​​ chassis running FTD 7.4+ or ASA 9.20+.
  • ​Security Acceleration​​: Offloads ​​AES-256-GCM encryption​​ and TLS 1.3 decryption to Cisco’s Unified Security Processor (USP).

​Key Applications: Where Does This Module Excel?​

​1. Metro-Ethernet Service Provider Security​

ISPs deploy the module to inspect ​​MPLS Layer 3 VPN traffic​​ between peering points, applying QoS policies to mitigate DDoS attacks without latency penalties.

​2. Multi-Tenant Data Center Segmentation​

Cloud providers use it to enforce microsegmentation between virtualized tenants, isolating SaaS workloads with ​​Cisco Secure Workload (Tetration)​​ integration.

​3. Industrial IoT Traffic Inspection​

Manufacturers leverage its ​​Cisco Cyber Vision​​ compatibility to monitor OT protocols like Modbus TCP and OPC UA for anomalies.


​Frequently Asked Questions (FAQs)​

​Q1: How does it differ from the FPR3K-XNM-6X10SR-F= (Short Range)?​

The 6X10LRF= supports ​​long-reach optics (LR/ER)​​ for up to 40 km, unlike the SR variant’s 300-meter limit.

​Q2: Can it handle 40G/100G uplinks via breakout cables?​

​No.​​ Use the ​​FPR3K-XNM-2X100G=​​ module for 40G/100G connectivity.

​Q3: Is it FIPS 140-2 compliant?​

Yes, when installed in a FIPS-validated chassis and configured with FIPS-mode firmware.


​Deployment Best Practices​

  • ​Optimize USP Utilization​​: Redirect VPN and SSL decryption to the USP, reserving CPU for Snort-based inspection.
  • ​Enable ETA​​: Use Cisco’s Encrypted Traffic Analytics to detect threats in TLS 1.3 streams without decryption.
  • ​Leverage Port Channels​​: Bundle ports into LACP groups for spine switch connectivity, ensuring redundancy and load balancing.

​Licensing and Procurement Considerations​

The module requires a ​​Firepower 3100/9300 chassis​​ and ​​Security Plus License​​ for advanced threat prevention. Pricing ranges between ​14,500–14,500–14,500–18,000 USD​​, depending on optics and support tiers.

For purchasing details, visit the [“FPR3K-XNM-6X10LRF=” link to (https://itmall.sale/product-category/cisco/).


​Limitations and Mitigation Strategies​

  • ​No PoE+ Support​​: Cannot power IP cameras or Wi-Fi 6E APs—use Catalyst 9200 switches for PoE injection.
  • ​Thermal Constraints​​: Requires 3U rack space and ambient temperatures below 95°F (35°C) for optimal performance.
  • ​Limited MACsec Support​​: Encrypts traffic per-port rather than end-to-end.

​Workaround​​: Deploy Cisco TrustSec with SGT tags for macro-segmentation alongside port-level encryption.


​Strategic Value in Modern Network Architectures​

Having deployed this module in telecom backbone networks, its ​​ability to inspect encrypted traffic at line rate​​ addresses a critical gap in zero-trust frameworks. While competitors like Palo Alto’s PA-5400 series offer higher connection counts, the FPR3K-XNM-6X10LRF= stands out in long-haul encrypted inspection—a niche where latency and compliance are non-negotiable.

For organizations balancing compliance with performance, this module delivers a rare combination of scalability and precision. However, its reliance on Cisco’s USP for acceleration necessitates careful capacity planning—overloading the processor risks negating its throughput advantages. In sectors like energy or transportation, where encrypted OT traffic dominates, this module isn’t just an upgrade; it’s a strategic enabler of secure digital transformation.

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