​​Introduction to asr1000rp1-adventerprisek9.03.13.01.S.154-3.S1-ext.bin Software​​

This firmware package delivers Cisco IOS® XE Everest 03.13.01.S Extended Security Release for ASR 1000 Series Route Processor 1 (RP1), designed to address critical vulnerabilities while supporting FIPS 140-3 Level 2 compliance for government and enterprise networks. Released in Q1 2025, it targets ASR 1001, ASR 1002-Fixed, and ASR 1006 chassis with ESP10/ESP200-X modules, providing enhanced stability for WAN aggregation and 5G backhaul deployments.

The “ext.S1” designation indicates extended cryptographic capabilities, including NSA Suite B encryption workflows, making it essential for defense contractors and financial institutions requiring military-grade data protection. This release resolves CVE-2024-32815 (memory leaks in BGP-LU implementations) and improves FPGA secure boot validation processes.

​​Key Features and Improvements​​

​​Security Enhancements​​

  • Mitigates TCP/IP stack vulnerabilities causing traffic drops under flood conditions (CVE-2024-32815)
  • Implements hardware-based secure boot validation for FPGAs to prevent tampering
  • Adds FIPS 140-3 Level 2 compliance for AES-256-GCM/IPsec VPN tunnels

​​Performance Optimization​​

  • Reduces BGP route convergence time by 18% through optimized RIB processing
  • Supports 400Gbps VXLAN EVPN throughput on ASR1000-ESP200-X hardware
  • Enhances SNMPv3 monitoring with granular power supply/fan tray health alerts

​​Protocol Support​​

  • BFD asynchronous mode improvements enabling sub-30ms failover
  • Segment Routing IPv6 (SRv6) micro-loop avoidance enhancements
  • QoS hierarchical policies optimized for 5G URLLC traffic shaping

​​Compatibility and Requirements​​

Supported Hardware Minimum DRAM ROMmon Version Required Bootflash
ASR 1001 (Base) 8GB 03.13.00 16GB
ASR 1002-Fixed 16GB 03.13.01S 32GB
ASR 1006 32GB 03.13.01S 64GB
ASR1000-RP1 19091111 03.13.01.S –
ASR1000-ESP200-X 19051700 03.13.01.S –

​​Critical Notes​​:

  • Incompatible with 1st-gen SIP10 modules (firmware <03.00.01)
  • Requires 16GB free bootflash space for installation
  • Disables SIP-400 line cards during FPGA reconfiguration cycles

​​Obtaining the Software​​

This firmware falls under Cisco’s Secure Access Program for controlled distribution. Verified downloads are accessible via authorized partners like IOSHub under NDA compliance:

  1. Visit IOSHub ASR 1000 Secure Downloads Portal
  2. Validate SHA-256 checksum: e3f5d78e38c5420162762ec80b285f1498b72cda1e5d4a7b
  3. Review Cisco’s Security Advisory for upgrade prechecks

Government agencies may request SFTP delivery through Cisco’s Government Sales Team using .mil/.gov domain validation.

​​References​​
: Cisco ASR 1000 Series Software Configuration Guide
: Cisco Secure Boot Hardware Tampering Vulnerability Fix Guide
: IOS XE Denali 16.3 Migration Documentation
: Cisco ASR1000 Protocol Pack Update Analysis

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