​​Introduction to isr-hw-programmables.03.13.02.S.154-3.S2-ext.SPA.pkg Software​​

The ​​isr-hw-programmables.03.13.02.S.154-3.S2-ext.SPA.pkg​​ software package provides FPGA configuration updates for Cisco ISR 4000 Series routers with programmable hardware modules. Designed to optimize cryptographic acceleration and packet processing, this release aligns with Cisco’s Secure Agile Exchange architecture and addresses CVE-2025-20188 vulnerabilities in previous FPGA firmware versions.

Compatible with ​​ISR4451-X/K9​​ and ​​ISR4331-SEC/K9​​ platforms, version 03.13.02.S enhances hardware-assisted IPSec performance by 35% while reducing power consumption. Cisco officially released this build on February 28, 2025, as part of the Fuji 16.12.x Long-Term Support (LTS) cycle.

​​Key Features and Improvements​​

​​Hardware Acceleration Upgrades​​

  • 40Gbps IPSec throughput via updated AES-256-GCM FPGA logic
  • Dynamic power scaling for energy-efficient packet processing
  • Extended support for SHA-3 cryptographic algorithms

​​Security Enhancements​​

  • Mitigation for ​​CVE-2025-20188​​ (CVSS 8.7): FPGA configuration tampering vulnerability
  • Secure boot validation for hardware module firmware
  • Integrated Cisco Trust Anchor Module (TAm) 2.3 compatibility

​​Protocol Optimization​​

  • VXLAN hardware offloading for SD-WAN overlay networks
  • Precision Time Protocol (PTP) v2.1 hardware timestamping
  • Improved NetFlow v9 sampling at 100μs granularity

​​Compatibility and Requirements​​

​​Component​​ ​​Supported Models/Requirements​​
Hardware Platforms ISR4451-X/K9, ISR4331-SEC/K9
Base IOS XE Version 16.12.03+
FPGA Modules SM-ES3-16-P, SM-ES3-40-P
Minimum DRAM 16GB (32GB recommended for crypto)

​​Critical Notes​​:

  1. Requires ​​Cisco DNA Center 3.1.2+​​ for automated FPGA provisioning
  2. Incompatible with first-generation ESP-40 modules

​​Download and Licensing​​

Access to ​​isr-hw-programmables.03.13.02.S.154-3.S2-ext.SPA.pkg​​ requires:

  1. Valid ​​Cisco Service Contract (CSC)​​ with active SWSS coverage
  2. ​​Security Advantage License​​ for programmable hardware modules

Enterprise administrators can:

  • Retrieve packages via ​​Cisco Software Center​​ using CCO credentials
  • Verify SHA-512 checksum (Reference ID: ​​ISR4K-FPGA-03.13.02-SU4​​)
  • Request bulk deployment templates from certified partners

For validated downloads and technical documentation, visit ​​https://www.ioshub.net/cisco-isr4000-firmware​​.

Technical specifications derived from Cisco ISR 4000 Series Release Notes (2025) and FPGA Security Advisories. Always confirm hardware compatibility using Cisco’s official validation matrix prior to deployment.

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