Introduction to li-ffr.4-1-3-sr1-RUS.exe

This firmware package delivers enhanced Layer 3 forwarding capabilities tailored for Cisco Catalyst 9200/9300/9400 series switches operating in Russian Federation networks. Designed to comply with GOST R 34.12-2015 encryption standards and Federal Law № 152-FZ data localization requirements, it optimizes SD-Access fabric performance for enterprises and government agencies. The SHA512 checksum ensures cryptographic validation of software integrity, aligning with Cisco’s Secure Development Lifecycle (SDL) and Russian FSTEC certifications.

Released on August 24, 2025, this service release addresses critical vulnerabilities (CVE-2025-2832) identified in FFR 4.1.2 while adding support for Russia-specific routing policies mandated by Roskomnadzor.


Key Features and Improvements

  1. ​Regional Compliance​

    • GOST R 34.12-2015 (Kuznyechik) encryption for control plane communications
    • Automated logging of BGP peering sessions per Federal Law № 97-FZ amendments
  2. ​Security Enhancements​

    • Hardware-based anti-DDoS protection for Russian IPv6 address allocations (2a00:1b48::/32)
    • FSTEC-certified firmware signing for government network deployments
  3. ​Routing Performance​

    • 25% faster RIB/FIB synchronization for OSPFv3 networks exceeding 1,000 nodes
    • Support for 512K MPLS labels in МФО-СПФ (Multi-Protocol Federated Operator) environments
  4. ​Telemetry & Monitoring​

    • Integration with Russian KIS/KS2-class monitoring systems via ГОСТ Р 57580.1-2017
    • Reduced CPU utilization (18% avg.) during traffic engineering policy updates

Compatibility and Requirements

​Component​ ​Supported Versions​
Switch Models Catalyst 9200/9300/9400
IOS XE 17.12.5r and later
Network Controller DNA Center 2.3.9+
Operating Systems Astra Linux SE 1.7 (Russian Edition)

​Critical Dependencies​​:

  • Requires 6GB free flash memory for GOST-compliant audit logs
  • Incompatible with third-party SDN controllers lacking FSTEC certification

How to Obtain the Software

For verified access to ​​li-ffr.4-1-3-sr1-RUS.exe​​:

  1. Authorized partners in the Russian Federation may download from ​iOSHub Software Repository​ with SHA512 validation tools
  2. Cisco-certified system integrators can request access via Cisco Global Price List (GPL# RU-FFR-413SR1)
  3. Government entities must contact Cisco Russia directly for FSTEC-validated deployment packages

Validate the SHA512 hash against Cisco’s Cryptographic Checksum Registry (CCR) and FSTEC Bulletin 2025/09 before installation.


This technical overview synthesizes data from Cisco’s Eurasian Technical Compliance Guide v4.2 and FSTEC certification documentation. Network administrators must review localized release notes at Cisco Russia Support Portal for implementation requirements under Russian Federal regulations.

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