Full English Description for Cisco FPR4225-NGFW-K9

1. Official Short Overview

Cisco FPR4225-NGFW-K9: High-performance 1RU rack-mount Next-Generation Firewall (NGFW) from active Cisco Secure Firewall 4200 series (mainstream production, full long-term TAC support). Factory preloaded Secure Firewall Threat Defense (FTD v7.x) as primary OS, permanent Security Plus K9 unrestricted base license. Fixed native port bank: 8×1/10/25G SFP28 multi-speed fiber ports, two independent hot-swappable NM-2 modular expansion bays supporting copper, 10G SFP+, 25G SFP28, 40G QSFP28, 100G QSFP28 breakout uplink modules. Dual dedicated SFP28 out-of-band management ports, RJ45 serial console, USB 3.0 Type-A port. Dual hot-swappable 1200W AC power supplies factory standard for full 1+1 redundancy, single 64-core AMD EPYC unified security processor with integrated hardware crypto offload, 512GB DDR4 ECC memory, dual hot-swappable 1.8TB U.2 NVMe SSD slots (RAID 1 supported for log/threat rule redundancy). Dual software support: FTD unified NGFW or classic Cisco Secure Firewall ASA v9.x logical device (full chassis reimage required to switch OS)Cisco.

Official Certified FTD Performance Metrics (1024B standard UDP test packets)

Raw stateful firewall throughput (FW only): 95.0 Gbps
Full threat-inspected NGFW throughput (FW+AVC+IPS): 80.0 Gbps
Standalone Snort 3 NGIPS inspection throughput: 80.0 Gbps
Hardware-accelerated IPsec VPN throughput: 13.5 Gbps (up to 18.0 Gbps with FTD 7.2 VPN offload enabled)
TLS/SSL hardware decryption throughput: 30.0 Gbps
Max concurrent TCP/UDP connections with AVC enabled: 80,000,000
Max new connections per second with AVC: 1,600,000
Total concurrent AnyConnect remote + site-to-site IPsec VPN peers: 15,000
Maximum logical routed VLAN interfaces: 1024
Maximum multi-context virtual firewalls under K9 license: 750

Supported Management Tools

Local ASDM/FDM web GUI, Secure Firewall Management Center (FMC), Cisco Security Manager (CSM), Cisco Defense Orchestrator (CDO), FXOS chassis manager, serial console, USB offline backup.

Typical Deployment Scenarios

Large hyperscale enterprise headquarters, nationwide carrier core DMVPN backbone aggregation, multi-building large university core edge, mid-large carrier MSP multi-tenant colocation, ultra-high-bandwidth hybrid cloud data center segmentation requiring factory-standard dual redundant power, dual expandable high-speed fiber uplink module bays and massive multi-tenant virtualization & decryption capacity.

2. Complete Hardware & Platform Overview

Product Line Positioning

The FPR4225-NGFW-K9 is the high-performance modular rack appliance in the Secure Firewall 4200 generation, positioned above mid-tier FPR4215 and below flagship top-tier FPR4245 models. It uses a modern single-socket AMD EPYC unified architecture (replaces legacy Firepower 4100 Intel/Cavium dual-split CPU design), delivering symmetrical 80Gbps threat-inspected throughput, industry-leading 30Gbps TLS decryption, 80 million concurrent session capacity, and native 25G fixed SFP28 base ports. It shares the standard 19-inch 1RU rack form factor and dual independent NM-2 expansion slots with all other 4200 series appliances, with factory-standard dual hot-swappable redundant power supplies, 512GB DDR4 ECC memory, dual hot-swappable NVMe storage, and 750 multi-context virtualization limits for hyperscale enterprise and carrier data center workloads with massive encrypted traffic demandsCisco.

The unified single-chip AMD architecture consolidates L3 forwarding, bulk IPsec encryption, massive TLS decryption, Snort 3 IPS, and AVC deep application inspection with dedicated hardware crypto acceleration, eliminating throughput degradation when all threat services run simultaneously at full line rate. The chassis runs FXOS chassis manager to control all hardware resources, then instantiates either FTD unified NGFW or ASA classic firewall as a single logical device (the two OSes cannot run concurrently without full chassis reimage).

The permanent K9 Security Plus license removes DES encryption limitations and unlocks full enterprise feature set: unlimited TLS proxy, complete dual-mode HA, full multi-context virtualization, 1024 VLANs, maximum VPN peer counts, and full AVC/IPS/AMP feature access, outperforming all legacy Firepower 4100 mid-tier appliances and fixed-port Firepower 3100 series models. The Secure Firewall 4200 line is Cisco’s active mainstream production replacement for the discontinued Firepower 4100 family (EoS Jan 6, 2026)Cisco.

Physical Chassis & Mechanical Specs

Form factor: 1RU 19-inch EIA-310-D rack-mount metal chassis, included 4-post rack mounting rails
Dimensions (H×W×D): 4.44 cm × 42.90 cm × 75.43 cm
Weight: 19.8 kg fully loaded (dual PSU, two NM modules, all fan assemblies)
Cooling: 3+1 hot-swappable redundant variable-speed front-to-back airflow fans; single fan fault triggers remaining fans to ramp full speed without traffic outage
Operating temperature: 0°C ~ +40°C below 10,000 ft altitude; 0°C ~ +35°C from 10,000–13,000 ft altitude
Storage temperature: -40°C ~ +65°C
Humidity: 5–95% non-condensing
Max operating altitude: 3048 m; full NEBS Level 3 telecom certified
Physical security: Integrated Kensington lock slot for chassis anti-tampering

Power Supply Specifications

Standard shipment: Dual hot-swappable 1200W universal AC power supplies (100–240 VAC, 50/60 Hz) factory installed for 1+1 full power redundancy
DC power option: Optional hot-swappable DC power supplies (-40 to -60 VDC) for telco rack environments
Power efficiency: >93% at 50% load; active load balancing with dual PSUs installed
Hot-swappable: PSU replacement without full chassis power shutdown

Hardware Core Architecture

Processing: Single-socket unified high-performance architecture – one 64-core AMD EPYC x86 general security processor with integrated dedicated crypto offload engine for wire-speed IPsec/TLS acceleration
Memory: 512 GB soldered DDR4 ECC high-speed SDRAM (16×32GB modules at 3200 MT/s)
Boot storage: 16 GB onboard eMMC for FXOS chassis OS
Data storage: Dual hot-swappable U.2 NVMe self-encrypting SSD drive bays; 1.8TB SSD preinstalled in slot 1, slot 2 supports SW RAID 1 for log retention and threat rule database redundancy

Port Layout & Interface Breakdown

Native fixed multi-speed fiber port bank (no built-in copper RJ45 data ports):
- 8 × SFP28 fiber slots supporting 1G/10G/25G SFP/SFP+/SFP28 transceivers (SR/LR/SX optical modules) for campus, data center and cloud uplinks
Dual independent front NM-2 modular expansion bays (two separate slots for flexible port scaling):

Supported interchangeable hardware bypass modules:
- FPR4K-XNM-8X10G: 8×1/10G SFP+ fiber hardware bypass module
- FPR4K-XNM-8X25G: 8×1/10/25G SFP28 fiber hardware bypass module
- FPR4K-XNM-4X40G: 4×40G QSFP28 fiber hardware bypass module (breakout to 4×10G per port)
- FPR4K-XNM-2X100G: Dual-width 2×100G QSFP28 fiber hardware bypass module (occupies both NM-2 bays simultaneously)
- FPR4K-XNM-8GE: 8×1G RJ45 copper hardware bypass module
- FTW fail-to-wire variants for all fiber/copper modules
  
  All SFP/SFP+/SFP28/QSFP28 optical transceivers sold separately as compatible accessories. No internal threat expansion blades supported.
Dedicated out-of-band management ports: 2 × SFP28 1G/10/25G isolated management ports, separated entirely from production data plane traffic for secure chassis/FTD management
Console & storage ports:
- RJ45 RS-232 serial console for local CLI access
- USB 3.0 Type-A port for firmware upload, configuration backup, log export
Failover port: DB-15 serial port for stateful sync in Active/Standby or Active/Active HA firewall pairs
Dual IEC AC power input sockets for primary and redundant power supplies

Front Panel LED Indicators

Global power status, dual independent PSU health, system fault alarm, FTD logical device operational status, failover sync status, fan fault warning, individual link/activity LEDs for all native SFP28, management and expansion module ports.

Compliance Certifications

FCC Class A, CE, FIPS 140-3 Level 1, EMC enterprise industrial standard, full NEBS Level 3 telecom qualified.

3. K9 Security Plus Full License Feature Set

Encryption & VPN

Full AES-128/AES-192/AES-256, 3DES, DES support (no DES-only restrictions on K8 base license)
Unlimited TLS proxy for SIP/SCCP VoIP inspection
Site-to-site IKEv1/IKEv2 IPsec tunnels, AnyConnect SSL remote access VPN, clientless SSL VPN
GRE DMVPN hub-spoke encapsulation, multi-chassis VPN clustering (max 16 nodes for spanned EtherChannel, max 16 logical cluster units)
15,000 total concurrent IPsec/AnyConnect VPN peers maximum

Firewall & Multi-Context Virtualization

Stateful packet inspection (SPI) firewall, routed / transparent firewall modes
Multi-context virtual firewall segmentation (up to 750 independent isolated logical firewalls)
Object-group ACL policy management, identity NAT, policy NAT, PAT overload, dynamic NAT pools
Full dual-mode high availability: Active/Standby and load-balanced Active/Active inter-chassis failover

Threat Defense Suite (FTD Unified OS Native)

Integrated Snort 3 NGIPS intrusion prevention system with global Talos threat signature updates
AVC Application Visibility & Control: 6000+ recognized applications, geolocation, user-based policy
Cloud URL filtering database (280M+ categorized global websites)
AMP for Networks cloud malware sandboxing (optional subscription license)
Multi-layer DDoS protection: SYN flood guard, TCP packet normalization, malformed packet filtering, strict URPF anti-spoofing
Layer 7 protocol ALGs: FTP, H.323, SIP, SCCP, RTSP, DNS, HTTP/S, SMB, RDP and mainstream SaaS applications
Encrypted Visibility Engine (EVE) for TLS 1.3 traffic inspection without full decryption

Routing & Network Services

Static routing, policy-based routing (PBR), BGP, OSPF, EIGRP dynamic routing protocols
Full dual-stack IPv4/IPv6 inspection and forwarding
Local DHCP server for internal LAN endpoints and IoT devices
PPPoE client for broadband ISP termination
Hierarchical four-level QoS bandwidth queuing with DSCP marking preservation across VPN tunnels
Forward Error Correction (FEC) support on all 25G/40G/100G fiber ports

AAA, Logging & Management

AAA authentication, authorization, accounting via external RADIUS/TACACS+ servers
Local user credential database for standalone emergency admin login
Comprehensive event logging, remote Syslog export to external SIEM platforms (PCI-DSS/HIPAA audit compliant)
SNMPv3 secure monitoring for chassis hardware, throughput, VPN tunnel and threat status
Native ISE integration for user-identity-aware security policies
REST API for third-party orchestration and automation
Native SecureX cloud threat orchestration integration

4. Supported Management Platforms

FTD / ASA CLI Console: IOS-style command-line interface accessible via serial console or SSH remote access for scripting and advanced enterprise security troubleshooting
ASDM / FDM Local GUI: Embedded HTTPS web interface for standalone single-device configuration, real-time traffic dashboards, VPN monitoring and threat reporting
Cisco Security Manager (CSM): On-prem centralized policy platform for bulk multi-site deployment orchestration, mass firmware upgrades and compliance reporting
Secure Firewall Management Center (FMC): Primary unified management for FTD NGFW deployments, centralizes NGIPS rules, AVC policies, malware sandboxing, URL filtering and AI-powered policy automation
Cisco Defense Orchestrator (CDO): Cloud-hosted multi-device management supporting zero-touch provisioning, cloud policy sync and SecureX cloud-native threat orchestration
FXOS Chassis Manager: Chassis-level GUI/CLI to manage power supplies, fans, NM-2 expansion modules, SSD storage and logical device instantiation (switching FTD/ASA requires full chassis reimage)
Offline backup: TFTP and USB dual methods for OS firmware upload and full configuration export/restore

5. Key Differentiators vs Related Cisco Firewall Models

vs FPR4225-NGFW-K8 DES Base License: Full unrestricted AES encryption, unlimited TLS proxy, expanded VLAN/session/VPN limits, 750 multi-context virtualization and complete dual-mode HA enabled; K8 license enforces hard caps on encryption, TLS sessions and virtual instances.
vs FPR4225-ASA-K9 ASA-Only PID: Identical physical hardware chassis, but factory locked to classic ASA software instead of unified FTD NGFW. ASA variant uses separate standalone IPS images, lacks native integrated AVC and SecureX cloud orchestration, and has limited unified FMC threat management compatibility.
vs FPR4215-NGFW-K9 Mid-Tier 4200 Model: Single 64-core AMD CPU vs single 32-core AMD CPU, larger 80M concurrent TCP/UDP sessions vs 40M, 80 Gbps full threat-inspected throughput vs 65 Gbps, expanded 750 multi-context capacity vs 250 contexts, identical dual NM-2 expansion bay layout and dual redundant power supplies.
vs FPR4245-NGFW-K9 Flagship Top-Tier Model: Lower overall raw/full-inspected throughput, smaller concurrent session/VPN limits, identical dual redundant power and NM-2 100G expansion capability, cost-optimized for large enterprise vs ultra-hyperscale carrier backbone workloads.
vs FPR4125-NGFW-K9 Legacy Firepower 4100 High-Performance Model: Modern AMD single-socket unified architecture vs old Intel/Cavium dual-split CPU design, native 25G SFP28 fixed ports vs 10G-only SFP+, USB 3.0 vs USB 2.0, far higher throughput and concurrent connection counts, active production lifecycle vs discontinued EOL hardware, integrated EVE TLS visibility engine absent on 4100 series.
vs Secure Firewall 3130-NGFW-K9 Compact 1RU Series: Dual independent NM-2 expansion slots (single NM-2 bay on 3100 series), native 25G fixed fiber ports, dual redundant power supplies factory standard, larger storage capacity, higher performance, modular expandable uplink density vs fixed-port compact appliance.

6. E-Commerce Short Marketing Summary

Cisco FPR4225-NGFW-K9 High-Performance Modular 1RU Rack-Mount Multi-Speed SFP28 Next-Generation Firewall, active production Cisco Secure Firewall 4200 series Security Plus unrestricted K9 NGFW appliance with eight built-in 1/10/25G SFP28 high-speed fiber uplink ports, two independent NM-2 modular expansion bays supporting optional 10G/25G/40G/100G fiber hardware bypass modules, dual dedicated SFP28 out-of-band management ports, dual RJ45 serial + USB 3.0 console interfaces, dual hot-swappable redundant 1200W universal AC power supplies factory standard, single 64-core AMD EPYC unified security processor architecture with upgraded 512GB DDR4 ECC memory, dual hot-swappable 1.8TB NVMe SSD slots with factory preinstalled storage, primary Secure Firewall Threat Defense (FTD v7.x) OS with optional ASA OS v9.x support. K9 license delivers full DES/3DES-AES strong encryption, unlimited internal host capacity, stateful SPI firewall, IPsec site-to-site/AnyConnect SSL remote access VPN, inline hardware Snort3 NGIPS intrusion prevention, AVC application visibility & control, NAT/PAT, PPPoE broadband client, unlimited TLS proxy for VoIP communications, up to 750 multi-context virtual firewalls and dual Active/Standby/Active/Active stateful failover with native multi-device VPN clustering (max 16 nodes). Up to 80.0 Gbps full threat-inspected NGFW throughput, 80,000,000 concurrent TCP/UDP connections and 15,000 simultaneous IPsec VPN tunnels, managed via local ASDM/FDM GUI, serial console, Cisco Security Manager and Secure Firewall Management Center. Active production high-performance rack-mount NGFW optimized for hyperscale enterprise headquarters, nationwide carrier central DMVPN aggregation hubs and multi-building large university 10G/25G/40G/100G fiber core edge security deployments requiring factory-standard dual redundant power, dual expandable high-speed fiber uplink module bays and large-scale multi-tenant virtualization & massive TLS decryption capacity.

7. Product Catalog Keyword Tags

Cisco, FPR4225-NGFW-K9, Secure Firewall 4200 Series High-Performance Modular 1RU Rack-Mount All-Fiber SFP28 Next-Generation Firewall, Active Production Hyperscale Enterprise National Carrier Core Stateful Inspection NGFW, Dual Hot-Swap Redundant Multi-Fan Front-to-Back Cooling 19-inch 1RU Rack Chassis, Dual Built-In Hot-Swap Redundant 1200W Internal Universal AC Power Supplies, 8 × 1/10/25GBase-X SFP28 Multi-Speed Native Fiber Uplink Ports, 2 × Independent NM-2 Modular Expansion Bays (FPR4K-XNM-8X10G / FPR4K-XNM-8X25G / FPR4K-XNM-4X40G / FPR4K-XNM-2X100G Hardware Bypass Modules Supported), Dual SFP28 Out-of-Band Management Ports, RJ45 Serial Console Port, USB 3.0 Type-A Storage Port, DB-15 Inter-Chassis Stateful Failover Serial Port, Single 64-Core AMD EPYC Unified Security Processor with Native Integrated QuickAssist Crypto Offload, 512768 MB DDR4 ECC SDRAM, 16 GB System eMMC Boot Flash, Dual Hot-Swap U.2 NVMe SSD Drive Bays (1×1.8TB Factory Preinstalled), Cisco Secure Firewall Threat Defense FTD Primary OS, Optional ASA OS Dual Software Support, Stateful Packet Inspection SPI, 95.0 Gbps Max Raw Firewall Throughput, 80.0 Gbps Max Full Threat-Inspected NGFW Throughput, 80.0 Gbps Standalone Snort 3 NGIPS Inspection Throughput, 13.5 Gbps Base Hardware-Accelerated 3DES/AES VPN Throughput (18.0 Gbps Offload Enabled), 30.0 Gbps TLS Hardware Decryption Throughput, Snort 3 NGIPS Threat Detection Engine, AMP for Networks Cloud Malware Sandbox Integration, URL Category Web Filtering (6000+ Recognized Applications / 280M+ Global URLs), IPsec IKEv1/IKEv2 DMVPN Site-to-Site & AnyConnect SSL/DTLS Remote Access VPN, Full DES/3DES-AES Unrestricted Strong Encryption Suite, L2 Wire-Speed Integrated Switch Functionality, Dual NM-2 Expandable Port Architecture Supporting 10G/25G/40G/100G Uplinks, NAT PAT Static Dynamic Address Translation, PPPoE DSL Broadband Aggregation Client, VoIP H.323 SIP SCCP TLS Proxy Inspection, Transparent Layer 2 Firewall Mode, Multi-Context Virtual Firewall Segmentation (Up to 750 Independent Contexts), Active/Standby & Active/Active Dual-Mode Stateful Failover Redundancy, Native Multi-Device VPN Clustering & Load Balancing (Max 16 Nodes), 1024 Logical Routed VLAN Maximum (Security Plus K9 License), 15000 Max Simultaneous IPsec/AnyConnect VPN Peers, 80,000,000 Concurrent TCP/UDP Connections, IEEE 1588v2 PTP Precision Time Protocol, Cisco AI Assistant for Automated Policy Tuning, Encrypted Visibility Engine (EVE), SecureX Cloud Orchestration Integration, ISE Identity Integration Support, ASDM/FDM Dual Embedded Local Web GUIs, Cisco Security Manager CSM Centralized Multi-Site Policy Orchestration, Secure Firewall Management Center FMC Threat Rule Centralized Control, Cisco Defense Orchestrator CDO Cloud Multi-Device Zero-Touch Management, Syslog SNMPv3 Secure Monitoring, Full Dual-Stack IPv4/IPv6 Routing & Inspection Support, Application-Aware Hierarchical QoS Bandwidth Scheduling, FIPS 140-3 Level 1 FCC Class A Office Certified, Full NEBS Level 3 Telecom Qualified, Active Production Platform (Current Cisco Mainstream Data Center NGFW), Full Long-Term Cisco TAC Support, Security Plus K9 Unrestricted Upgrade Over FPR4225-NGFW-K8 DES Base License, Hyperscale Enterprise Headquarters Modular 1RU All-Fiber 10G/25G Edge NGFW, National Carrier Central DMVPN Aggregation Dual NM-2 Expandable Dual Redundant PSU High-Performance Security Appliance, Multi-Building Large University 750-Context Multi-Tenant Virtual Segmentation High-Performance Rack Firewall, Direct Hardware Upgrade Replacement for Discontinued FPR4125 Legacy Firepower 4100 Mid-Performance Rack Appliance

Naming Rule Explanation

FPR: Modern Secure Firewall hardware prefix for active-production 4200 series modular rack security appliances
4225: High-performance dual expansion bay rack-mount national large enterprise/carrier core hardware model identifier within Secure Firewall 4200 active production platform
NGFW: Abbreviation for Next-Generation Firewall, signifies factory PID licensed to run unified Secure Firewall Threat Defense (FTD) primary operating system (distinguishes from ASA-only FPR4225-ASA-K9 PID)
K9: Premium unrestricted Security Plus license identifier unlocking full AES encryption, expanded session/VLAN capacity, unlimited TLS proxy, up to 750 multi-context virtual firewalls and dual-mode Active/Standby + Active/Active stateful failover; contrasted with K8 base DES-only restricted license

Hardware Distinction Note

FPR4225-NGFW-K9 is the high-performance dual-NM modular rack model of the active-production Secure Firewall 4200 generation, built on a modern AMD EPYC unified single-socket architecture to replace the legacy Intel/Cavium dual-split Firepower 4100 design. Key differentiators include native 25G SFP28 fixed base ports, USB 3.0, dual dedicated SFP28 management ports, dual hot-swappable redundant power supplies factory standard, dual independent NM-2 expansion bays supporting full 100G QSFP uplink modules, 80 million concurrent sessions and 15,000 VPN peer limit, with copper-free all-fiber fixed port layout. This product remains fully manufactured, sold, and supported by Cisco with full long-term TAC service contracts available.


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