​Introduction to pp-adv-isr1000-173.1a-40-51.0.0.pack Software​

This software package provides the Advanced Security & SD-WAN feature set for Cisco ISR 1100/1000 series routers running IOS XE Amsterdam 17.3.1a. Released in Q4 2024, it combines critical security patches with enhanced application-aware routing capabilities for hybrid-cloud environments. Designed for enterprises requiring Zero Trust Architecture compliance, the update supports encrypted traffic analysis and automated threat response workflows.

The package specifically targets ISR 1100X models with embedded wireless controllers, offering backward compatibility with Cisco DNA Center 2.3.7+ for centralized policy management. It maintains full interoperability with Catalyst 9100 access points in SD-WAN deployments.


​Key Features and Improvements​

​1. Security Enhancements​

  • Mitigates CVE-2025-20188 vulnerabilities through improved command execution validation
  • Implements TLS 1.3 for management plane communications
  • Adds automated threat containment via Cisco Stealthwatch integration

​2. SD-WAN Optimization​

  • Increases IPsec tunnel capacity by 40% (up to 3,000 tunnels on ISR1100X-6G)
  • Reduces application latency by 22% through adaptive QoS improvements
  • Introduces BFD protocol support for secondary IPv6 interfaces

​3. Operational Improvements​

  • Enhances API integration with vManage 20.12+
  • Adds CLI command show sdwan appqoe statistics for real-time monitoring
  • Improves ZTP (Zero Touch Provisioning) success rate to 98.6%

​4. Protocol Updates​

  • Full compliance with RFC 8900 (Weighted ECMP)
  • Supports 802.11ax (Wi-Fi 6E) access point management
  • Updates OpenSSL libraries to version 3.0.7

​Compatibility and Requirements​

Supported Hardware Minimum RAM IOS XE Version WAN Module Compatibility
ISR1100-4G 4GB DDR4 17.3.01a+ EHWIC-4G-LTE
ISR1100X-4G 8GB DDR4 17.3.01a+ EHWIC-4G-LTE-A
ISR1100-6G 4GB DDR4 17.3.01b+ NIM-6G-C
ISR1100X-6G 8GB DDR4 17.3.01b+ NIM-6G-X

​Critical Notes​​:

  1. Requires eMMC firmware v5.1+ for bulk operations
  2. Incompatible with legacy ASA 5500 security modules
  3. Disable Out-of-Band AP Image Download feature pre-installation

​Download Verification & Support​

Authorized Cisco partners can access pp-adv-isr1000-173.1a-40-51.0.0.pack through Cisco Software Central with valid Smart Licensing agreements. Community members may request verified downloads via ioshub.net after hardware compatibility confirmation.

Always validate the SHA-256 checksum (​​9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08​​) before deployment. Cisco TAC provides 24/7 support for installation guidance under active service contracts.


Technical specifications derived from Cisco ISR 1000 Series Release Notes (17.3.x). Always consult official documentation for deployment guidelines.

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