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Deploying Ipv6 Networks

by: Popviciu & Levy-Abegnoli

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On-line Price: TBAPaperbackpackage, 672

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Publisher: CISCO PRESS,10.02.06

Category: Cisco Level:

ISBN: 1587052105
ISBN13: 9781587052101

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An essential, comprehensive, and practical guide to IPv6 concepts, service implementation, and interoperability in existing IPv4 environments

After completing Deploying IPv6 Networks, you will:

Understand the current state of IPv6 technologies and services
Understand the IPv6 features as they are applied in service deployments
Be prepared with guidelines on how to ready your organization for a migration to IPv6
Know how to design and implement an IPv6 production-level network using the book's templates and examples
Have the ability to configure and troubleshoot IPv6 networks
Know where IPv6 developments are moving in the future
Large IPv6 production deployments worldwide are proof that the transition to the next generation of the IP protocol is no longer merely a prediction-IPv6 is now touching all aspects of IP networking and communications. Therefore, understanding the technology and being able to plan, design, and deploy IPv6 services are necessary skills for networking professionals.

Deploying IPv6 Networks is an essential guide to IPv6 concepts, service implementation, and interoperability in existing IPv4 environments. You'll learn about IPv6 as a mature technology ready for deployment. Deploying IPv6 Networks goes beyond addressing the basics of IPv6 yet remains accessible to readers unfamiliar with the protocol. With this book in hand, you will learn how to plan, design, deploy, and manage IPv6 services.

Deploying IPv6 Networks opens with an updated "Case for IPv6": a review of the IPv4 challenges and the IPv6 opportunities. It then covers the IPv6 concepts related to IP services provided in real networks. Relevant features and corresponding configuration examples are presented in a deployment context as they are applied to the various segments of the network. The IPv6 knowledge accumulated in the first part of the book is revisited in Part II, where it is leveraged in concrete and usable examples that cover most common network environments: MPLS service provider, IP service provider, and enterprise.

The structure of Deploying IPv6 Networks enables you to use it as a reference for specific aspects of IPv6, as a technology study guide, or as a design guide for deploying IPv6. You'll also find that the presentation approach enables you to leverage your IPv4 experience to quickly become knowledgeable and proficient with the concepts of IPv6.

Table of Contents


Part I

              Implementing IPv6 Services

Chapter 1

      The Case for IPv6-An Updated Perspective

Unicast Connectivity


IPv4 Address Architecture

Private Versus Public Addresses

Static Versus Dynamic Addresses


Network Address Translation


QoS Services

Multicast Services

Virtual Private Networks


IP Mobility

IPv6 Is an Evolutionary Step

Chapter 2

      An IPv6 Refresher

IPv6 Addressing

IPv6 Address Representation

IPv6 Address Architecture

IPv6 Unicast Address

IPv6 Anycast Addresses

IPv6 Multicast Addresses

IPv6 and Layer 2 Addressing

IPv6 Addresses Required for an Interface

Configuring IPv6 Addresses in Cisco IOS Routers

IPv6 Addressing Architecture at a Glance

IPv6 Packet Format

IPv6 Versus IPv4 Basic Header Format

IPv6 Extension Headers

Hop-by-Hop Options Header

Destination Options Header

Routing Header

Fragment Header

Authentication Header

Encapsulating Security Payload Header

Mobility Header

Linking Multiple Extension Headers

IPv6 and Data-Link Technologies

Internet Control Message Protocol for IPv6


Error Messages

Destination Unreachable

Time Exceeded

Packet Too Big

Parameter Problem

ICMPv6 Informational Messages

Source Address Selection Algorithm

Conclusion on ICMPv6

Neighbor Discovery Protocol

Protocol Operations Summary

Comparison with IPv4

Router and Prefix Discovery

Address Resolution

Redirecting a Host to a Better Next Hop

Inverse Neighbor Discovery

Proxy Neighbor Discovery

Neighbor Discovery Algorithms

Next-Hop Determination

Default Router Selection

Duplicate Address Detection

Neighbor Unreachability Detection

The State Machine for Reachability


Neighbor Discovery at a Glance

Chapter 3

      Delivering IPv6 Unicast Services


IPv6 Provisioning

Host IPv6 Address Provisioning

Stateless Autoconfiguration

Stateful DHCP

Router IPv6 Address Provisioning: Prefix Delegation

Protocol Description

Requesting Router

Delegating Router

What DHCP-PD Does Not Do

Other Configuration Information

Stateless DHCP

DNS Services

IPv6 Network Access

Media Types

Native IPv6 Access

Routed Access

Bridged Access

PPP-Encapsulated IPv6 Access

Virtualized Access Layer

Access over Tunnels

Manually Configured Tunnel

Tunnel Broker and Tunnel Server



IPv6 over the Backbone

Native IPv6

IPv6 over IPv4 Tunnels

IPv6 over MPLS

Translation Mechanisms (NAT-PT)

Chapter 4

      IPv6 Routing Protocols

Distance Vector Routing Protocol

Path Vector Routing Protocol

Link-State Routing Protocol

IPv6 Interior Gateway Protocols

Routing Information Protocol next-generation

Support for IPv6

Configuration Example

EIGRP for IPv6

Support for IPv6

Configuration Example


Support for IPv6

Configuration Example

IS-IS for IPv6

Support for IPv6

Configuration Example


Use of MP-BGP Extensions for IPv6 Interdomain Routing

BGP Peering

BGP Next Hop

BGP Configuration Example

Site Multihoming

Deploying IPv6 Routing Protocols

Network Core

Network Distribution/Edge

Network Access

Chapter 5

      Implementing QoS

QoS for IPv6

Differences Between IPv6 and IPv4 QoS

Layer 3 QoS

Layer 2 QoS

Link-Efficiency Mechanisms

Differentiated Services

Support for IPv6

Configuration Example

Integrated Services

Support for IPv6

QoS for IPv6 over MPLS

Using DiffServ in a 6PE or 6VPE Environment

Configuration Example

Using RSVP-TE in a 6PE or 6VPE Environment

Using Multiple BGP Next Hops

COS-Based TE Tunnel Selection (CBTS)

Deploying QoS for IPv6

QoS in a Native IPv6 Deployment

QoS in an MPLS-Based IPv6 Deployment

IPv4 and IPv6 Coexistence

Chapter 6

      Providing IPv6 Multicast Services

IPv6 Multicast

Group Membership Management

Multicast Listener Discovery

Multicast Layer 2 Protocols

Multicast Routing and Forwarding

Multicast Distribution Trees

Reverse-Path Forwarding Determination

Protocol Independent Multicast

Deployment Considerations

Multicast Domain Control

RP Mapping and Redundancy

Service Models

Multicast over Tunnels

Multicast over MPLS Infrastructures

IPv6 Multicast Deployment Examples

SSM in a Service Provider Network

Enabling IPv6 Multicast Routing

MLD Configuration

Tuning PIM

Subscriber Joining the (S,G)

IPv6 Multicast Traffic Forwarding

ASM in an Enterprise Network

Configuring BSR

Configuring Candidate RP routers

PIM Topology and Traffic Forwarding

Operation with Embedded RP

Chapter 7

      VPN IPv6 Architecture and Services

Virtual Private Network Overview

Provider-Provisioned VPNs

CE-Based VPNs

PE-Based VPNs

Addressing Considerations

Security Considerations

Using IPsec to Implement CE-Based VPNs

Remote Access

IPsec Tunnel Alternatives


IPv6 CE-Based VPN deployment

BGP-MPLS IPv6 VPNs: A PE-Based VPN Solution

Routing Table Segregation

Routing Protocols for BGP-MPLS IPv6 VPN

BGP Next Hop

Building the Label Stack

Forwarding in BGP-MPLS IPv6 VPN

VRF Concepts and IPv6 Implementation

Configuring a VRF

Associating a VRF to an Interface

VRF-Aware Router Commands

Scaling IPv6 VPNs

MP-BGP for VPNv6 at a Glance

Topology Examples

Using IPsec to Secure IPv6 over an IPv4 Tunnel

Basic MPLS VPNv6 Topology

Dual-Stack VPNs

Route Reflectors

Hub and Spoke

Internet Access

Interprovider VPNs

Chapter 8

      Advanced Services-IPv6 Mobility

Chapter Overview

IP Host Mobility

Mobile IPv4 in a Nutshell

Mobile IPv6

Mobile IPv6 Operation Overview

IPv6 Mobility Header

Destination Option

Dynamic Home Agent Address Discovery

Route Optimization

Mobile IPv6 Security

Mobile IPv6 Deployment

Configuration Example

Using ACLs to Control MIPv6 Operation on the Home Agent

Network Mobility

Practical Use Cases

Enterprise on the Move

Home Gateway

Personal-Area Network

Internet-Enabled Car

Sensor Network

Fleet in Motion

Object Model and Terminology

Basic Operations

What About NEMO?

Home Network in NEMO

Extended Home Network

Aggregated Home Network

Mobile Home Network

Distributed Home Network

Virtual Home Network

IP Mobility in Nonmobile Scenarios

IPv4 to IPv6 Transitioning

Topology Hiding

Community of Interest

Route Projection

Server Load Balancing

Next Steps in Mobility

Forthcoming Evolutions

Faster Roaming

Movement Detection

Attachment Router Selection

Integration with Mobile Ad-hoc Networking

Endpoint Identification


Route Optimization for NEMO

A Vision

Chapter 9

      Securing IPv6 Networks

Security Threats and Best Practices to Protect Against Them

Threats with New Considerations in IPv6


Unauthorized Access

Header Manipulation


Layer 3/Layer 4 Spoofing

Host-Initialization and Address-Resolution Attacks

Broadcast-Amplification Attacks (Smurf)

Routing Attacks

Viruses and Worms

Transition-Mechanism Attacks

A Note on Mobile IPv6 Security

Threats with Similar Behavior in IPv4 and IPv6


Application Layer Attacks

Rogue Devices

Man-in-the-Middle Attacks

Flooding Attacks

6PE Security

A Note on VPN Security

Tools Available for Securing IPv6 Networks

IPsec for IPv6

IPsec Concepts

Using IPv4 IPsec to Secure IPv6 Tunnels

Securing Router-to-Router Communication with IPv6 IPsec

Access Control Lists

Extended IPv6 ACLs and Stateful Filtering

IPv6 ACLs and Fragmentation

IPv6 Access List Example

Firewall Functions

Cisco IOS Firewall

PIX Firewall

Authentication, Authorization, and Accounting

Unicast Reverse Path Forwarding

Protecting the Control Plane with Rate Limiting

Summary of Best Practices for Securing IPv6 Deployments

Chapter 10

  Managing IPv6 Networks

IPv6 Network Management: The Challenges

Allocating IPv6 Addresses to Managed Nodes

Integrating IPv6 and IPv4 Network Management

Network-Management Architecture

Retrieving Information from Routers and Switches


SNMP over IPv6


BGP and Other MIBs

IPv6 MIB Example



Other Protocols (Telnet/SSH/RSH/TFTP/FTP)

Fault Management

Flow Analysis Using NetFlow

Cisco NFC


Cisco Network Analysis Module

Topology Management

Routing Management

Analysis for Troubleshooting

Performance Management

Cisco IOS IP Service-Level Agreements

Other IPv6-Enabled Tools for Performance Analysis

Configuration and Provisioning Management

Management Platforms


Other Management Platforms

HP OpenView

Tivoli NetView


IPv6 Network Management Services and Tools at a Glance

Chapter 11

  Network Performance Considerations: Coexistence of IPv4 and IPv6

Aspects of Router IPv6 Performance

IPv6 Control Plane

IPv6 and the Data Plane

Measuring Forwarding Performance

The Right Router for the Job

Router Architecture Overview

Software Versus Hardware Forwarding

Centralized Versus Distributed Forwarding

IPv6 Forwarding Performance of Cisco Routers

Low-End Routers

Mid-Range Routers

High-End Routers

6PE Forwarding Performance

IPv6 Router Performance Evaluation Checklist

Part II

            Deployment Case Studies

Chapter 12

  Generic Deployment Planning Guidelines

Cost Analysis

Host-Related Costs

Network Elements-Related Costs

Operations-Related Costs

Address Policies and Registration Process


Chapter 13

  Deploying IPv6 in an MPLS Service Provider Network

Network Environment

Network Design Objectives

EuropCom Services

Internet Access


Carrier Supporting Carrier

DNS Services

Content Hosting/Storage

Voice over IP

Peer-to-Peer Applications and Other Services

Network Design

Access Design

POP Design

Core Design

IGP Design Considerations

MPLS Design Considerations

QOS Design Considerations

ICMP Design Considerations

Edge Design

PE Router Design and Implementation Considerations

PE-CE Interface Design

PE-CE Routing Design

PE-PE Routing Design

Route Reflector Design

VRF Design

Inter-AS Design

Basic Services Design and Implementation

Global IPv6 Internet Access Design and Implementation

Layer 3 MPLS VPN Service Design and Implementation

VPN Internet Access Service Design and Implementation

Carrier's Carrier Service Design

Quality of Service Design

Operating and Troubleshooting the Network

Service and Traffic Monitoring


Link-Local Addresses

Addresses for Management

Using Unique-Local Addresses

Inter-Provider Communications


MTU Discovery


Securing the Edge

Securing the 6PE Infrastructure




Design Lessons

Chapter 14

  Deploying IPv6 in an IP Service Provider Network

Network Environment and IPv4 Services

IPv6 Deployment Plans

Targeted IPv6 Services

Unicast Connectivity

Internet Access

DNS Services

Mail Services

Content Hosting/Storage

Voice over IP

Content Delivery-Multicast

Mobile IPv6-Communities of Interest

Design Goals

Design Options

PPP/L2TP-Based Deployment Option

Dual-Stack Deployment Option

Basic Services Design and Implementation

Addressing Plan

Unicast Connectivity


Edge and Core

Service Rollout Plan

DNS and Content Hosting/Storage

Internet Access

Advanced Services Design and Implementation

Content Distribution-IPv6 Multicast

IPv6 Multicast Service Design

IPv6 Multicast Implementation

Quality of Service

QoS Service Design

QoS Implementation

Operating and Troubleshooting the Network

Securing the IPv6 Network

Securing the Access

Securing the Edge

Securing the Data Center

Managing the Network



Unicast Routing and Forwarding

Multicast Routing and Forwarding

Deployment Lessons

Chapter 15

  Deploying IPv6 in an Enterprise Network

Introducing AC Corporation

AC Network Environment

AC Network Infrastructure


Branch Offices

Business Drivers to Integrate IPv6 on the AC Network

Learning the Technology

Expanding the Test Bed

Domain Name Service (DNS)


IPv6 Internet-to-Campus Connectivity

Expanding the IPv6 Intranet Testing

Lessons from the Trial

Moving IPv6 to Production

Cost Analysis


Design and Setup

IPv6 Addressing

Prefix-Assignment Scheme

Address Configuration Rules

Dual-Stack Deployment

Routing Protocols

First-Hop Router Redundancy

Tuning Neighbor Discovery

Configuring Default Router Selection

Enabling Cisco HSRP for IPv6

Securing the IPv6 Deployment


Network Management




Future Evolutions

Prefix Selection, Assignment Policies and Multihoming


Market Expansion



Deploying IPv6 Networks
Reviewer Name: John Ainsworth

This book is targeted toward network service provider engineers. It is "cutting edge" in that some parts of it deal with technology that is not only not deployed in production yet, but is only in draft form in the standards community. Also ambitious enterprise network administrators may want to stretch their understanding of the next generation global transport protocol. Deploying IPv6 Networks is both an exhaustive analogy of the many uses of IPv6 and also a how-to manual with many configuration examples.

Chapters 12 through 15 are dedicated to deployment case studies for both ISPs and company networks. The book became most interesting to me in Chapter 8, Advanced Services - IPv6 Mobility. This chapter covers the challenges of keeping a globally unique address while roaming to different parts of the planet. There is a thorough explanation of the roles that Cisco routers can play in relaying traffic to the ever changing location of mobile users. Chapter 2 is a good refresher of the basics of IPv6 as described in the RFCs. The author gives good reference throughout the book for further research on each topic, such as RFCs and other books that specialize on topics like VPNs and Security. The diagrams that are spaced every few pages, give clarity to the subject. Finally, the book is balanced and realistic in its philosophy of the technology. That is, the writers are not na´ve about the problems with implementing IPv6 and they address this in every chapter.

Technology usually changes so rapidly we spend all our time just trying to catch up. The slow start of IPv6 gives us no excuse for being unprepared when the next killer application or device demands its implementation in our network. Reading Deploying IPv6 Networks is sure to pay off.

Sample Chapter(s)
Download - 16 MB -- Chapter 5: Implementing QoS

Download - 101 KB -- Index