Preface


Note

This product has reached end-of-life status. For more information, see the End-of-Life and End-of-Sale Notices.

This guide describes the configuration and examples for system security. For system security command descriptions, usage guidelines, task IDs, and examples, refer to the System Security Command Reference for Cisco ASR 9000 Series Routers.

From Release 6.1.2 onwards, Cisco introduces support for the 64-bit Linux-based IOS XR operating system. Extensive feature parity is maintained between the 32-bit and 64-bit environments. Unless explicitly marked otherwise, the contents of this document are applicable for both the environments. For more details on Cisco IOS XR 64 bit, refer to the Release Notes for Cisco ASR 9000 Series Routers, Release 6.1.2 document.

The preface contains the following sections:

Changes to This Document

This table lists the technical changes made to this document since it was first released.

Table 1. Changes to This Document
Date Summary

April 2022

Republished for Release 7.5.2.

November 2021

Initial release of this document.

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