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Cisco GRS User Manual

Cisco GRS
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Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco
CRS Router, Release 5.2.x
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883
Text Part Number: OL-32659-01

Table of Contents

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Cisco GRS Specifications

General IconGeneral
Product TypeRouter
Port InterfacesMultiple 10GE, 40GE, and 100GE ports
Operating SystemCisco IOS XR
RedundancyYes
Power SupplyDual or multiple power supplies

Summary

Preface

Changes to This Document

Lists technical changes made to the document since its first release.

Obtaining Documentation and Submitting a Service Request

Information on obtaining documentation, using Cisco Bug Search Tool, and submitting service requests.

New and Changed Carrier Grade NAT Feature Information

New and Changed Carrier Grade NAT Features

Lists features introduced or changed in Cisco IOS XR Carrier Grade NAT configuration.

Implementing Carrier Grade NAT on Cisco IOS XR Software

Carrier Grade NAT Overview and Benefits

Provides an overview of Carrier Grade NAT implementation and its advantages.

Information About Carrier Grade NAT

Details information about implementing NAT using ICMP and TCP protocols.

Cisco Carrier NAT Applications

Lists applications deployed on the CGSE line card for Carrier Grade NAT.

Policy Functions

Explains various policy functions related to Carrier Grade NAT.

Implementing Carrier Grade NAT on Cisco IOS XR Software

Details tasks to get started with CGN configuration.

Configuration Examples for Implementing the Carrier Grade NAT

Provides practical examples for configuring Carrier Grade NAT.

External Logging

Bulk Port Allocation

Allocates blocks of ports to reduce volume of log data generated by NAT sessions.

Session logging

Includes destination IP and port information in NAT translation records for Netflow or Syslog.

Syslog Logging

Configures Syslog logging for NAT table entries.

Frequently Asked Questions (FAQs)

Answers common questions about external logging features.

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