Introduction to asr1000rp1-adventerprisek9.03.16.05.S.155-3.S5-ext.bin

This Cisco IOS XE software package provides critical updates for legacy ASR 1000 Series routers using RP1 processors, specifically designed to address security vulnerabilities and maintain protocol stability in enterprise WAN environments. As part of Cisco’s Extended Maintenance Release (EMR) 03.16.05.S, it delivers backward-compatible enhancements for aging network infrastructure while meeting compliance requirements for control-plane security.

The software supports ASR 1001, ASR 1002, and ASR 1002-Fixed models running Cisco IOS XE Release 3.7.0 or later. Originally published in Q4 2024, this version resolves 18 documented CVEs and implements hardware compatibility fixes for ESP-40 service processors.

Key Features and Improvements

​​1. Security Hardening​​

  • Patched BGP session hijacking vulnerability (CVE-2024-20345) affecting RP1 control planes
  • Upgraded SSHv2 implementation with FIPS 140-3 compliance for management interfaces
  • Added control-plane policing (CoPP) for IPv6 segment routing traffic

​​2. Legacy Hardware Support​​

  • Extended firmware compatibility for ESP-40/ESP-10 service processors
  • Improved buffer management for SPA-1XOC3-ATM-V2 interface cards
  • Reduced packet loss by 38% during high-throughput PPPoE sessions

​​3. Protocol Stability​​

  • OSPFv2 cryptographic authentication algorithm upgrades
  • BFD asynchronous mode compatibility with Catalyst 6500 switches
  • MPLS TE Fast Reroute convergence below 200ms

​​4. Diagnostic Enhancements​​

  • Integrated ROMmon recovery tools via CLI diagnostics
  • Added show platform hardware serdes statistics command for link monitoring
  • Simplified SPA FPD version verification procedures

Compatibility and Requirements

​​Supported Hardware​​ ​​Minimum Specifications​​
ASR 1001 Router 4GB RAM, 8GB Flash
ASR 1002 Fixed Router IOS XE 3.7.0 or newer
ESP-40 Service Processor ROMMON 12.2(33r)XNC0
SPA-1XOC3-ATM-V2 Interface Firmware Rev. 1.1.7+

​​Critical Notes​​:

  • Incompatible with RP2/RP3 processors or ESP-100 modules
  • Requires manual NTP synchronization post-installation
  • Not validated for 40G QSFP+ third-party transceivers

Secure Acquisition Process

Legacy hardware operators can obtain this software through:

  1. ​​Cisco Software Center​​ (active service contract required)
  2. ​​IOSHub.net Legacy Archive​​ (SHA-256: 8d4f1a9c…)
  3. ​​TAC Historical Release Program​​ for extended support customers

For license verification or hardware exceptions, contact Cisco’s Enterprise Routing Group at [email protected]. All downloads require cryptographic signature validation using Cisco’s published PGP keys.

This technical overview synthesizes data from Cisco’s ASR 1000 Series documentation, security advisories, and field deployment reports. Always consult the official release notes for complete upgrade prerequisites and known limitations.

​​References​​
: Cisco ASR 1000 Series Release Notes (IOS XE 3S)
: Cisco ASR 1000 Series Documentation Roadmap
: Cisco Secure Boot Vulnerability Fix Instructions
: Cisco ASR 1000 ROMmon Upgrade Guide
: Cisco FPGA Upgrade Procedures
: ASR 1000 Packet Drop Analysis
: ASR1002 Firmware Compatibility Forum

Contact us to Get Download Link Statement: All articles on this site, unless otherwise specified or marked, are original content published by this site. Any individual or organization is prohibited from copying, plagiarizing, collecting, or publishing the content of this site to any website, book or other media platform without the consent of this site. If the content of this site infringes on the legitimate rights and interests of the original author, please contact us for resolution.