Syngress Configuring IPv6 For Cisco IOS

1. Auflage 2002
ISBN: 978-0-08-047676-6
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 520 Seiten, Web PDF

By building IPv6 into Cisco IOS software, we are enabling continued growth of the Internet and its expansion into new applications and capabilities in a way that maintains compatibility with existing Internet services. -- Stephen Deering, Cisco Fellow and lead designer of the protocol

Internetworking Protocol (IP) addresses are the unique numeric identifiers required of every device connected to the Internet. Two years ago, in response to the exponential increase in demand for new IP addresses, the Internet Engineering Task Force finalized its revision on IP addressing, called IP Version 6 and key hardware vendors such as Cisco and major Internet Service Providers like AOL announced plans to migrate to IP Version 6. That is now happening. Cisco Systems began incorporating Internet Protocol version 6 (IPv6) in its Cisco IOS Software in June, 2001. Cisco is currently the only major networking vendor to deliver IPv6 across multiple platforms.
This book provides complete coverage of IPv6 strategies, configuration scenarios, and techniques to successfully deploy an IPv6 addressing and subnetting scheme on your network. It also covers:

Increasing the IP address size from 32 bits to 128 bits
Supporting more levels of addressing hierarchy
Supporting an increased number of addressable nodes
Supporting simpler auto-configuration of addresses
Improving the scalability of multicast routing by adding a scope field to multicast addresses
Use a new anycast address to send a packet to any one of a group of nodes

Autoren/Hrsg.

Syngress

Inhaltsverzeichnis

1;Cover;1
2;Contents;12
3;Foreword;20
4;Chapter 1 Introduction to the Cisco IOS;22
4.1;Introduction;23
4.2;Connecting to the Router;23
4.2.1;Console Port Connections;24
4.2.2;Telnet Connection;27
4.2.3;SNMP Configurations;28
4.3;Entering Commands to Configure a Cisco Router;30
4.3.1;Using Configuration Commands;32
4.3.1.1;Using Passwords to Control Router Access;34
4.3.1.2;Performing Interface Configuration Tasks;36
4.3.2;Using show Commands;39
4.3.2.1;Using the show version Command;42
4.3.2.2;Using the show running-configuration Command;44
4.3.2.3;Using the show interface Command;46
4.4;Increasing Efficiency by Using Shortcuts;48
4.5;Summary;50
4.6;Solutions Fast Track;51
4.7;Frequently Asked Questions;52
5;Chapter 2 Introduction to IPv6 Architecture;54
5.1;Introduction;55
5.2;Understanding the Benefits of IPv6;55
5.2.1;Increased IP Address Size;56
5.2.2;Increased Addressing Hierarchy Support;57
5.2.3;Simplified Host Addressing ;62
5.3;Simpler Autoconfiguration of Addresses;63
5.4;Improved Scalability of Multicast Routing;65
5.5;The Anycast Address;69
5.6;Streamlined Header;71
5.7;Security;73
5.8;Mobility;74
5.9;Performance;75
5.10;Comparing IPv6 to IPv4;76
5.10.1;Addressing Structure;77
5.10.2;Address Administration;77
5.10.3;Header Comparison;79
5.10.4;Feature Comparison;80
5.11;Examining IPv6 Network Architecture;81
5.11.1;IPv6 Communication Fundamentals;82
5.11.1.1;Intra-Subnet Communications;82
5.11.1.1.1;Inter-Subnet Communications;84
5.11.1.1.2;Internetwork Communications;86
5.11.2;Upper-Layer Protocol Issues;88
5.11.3;Understanding ICMPv6;89
5.11.3.1;Error Messages;90
5.11.3.2;Informational Messages;91
5.11.4;Understanding Neighbor Discovery;92
5.11.4.1;Router Solicitation and Advertisement;93
5.11.4.2;Neighbor Solicitation and Advertisement;94
5.11.4.3;Redirect Message;94
5.11.4.4;Message Options;95
5.11.5;Summary;96
5.11.6;Solutions Fast Track;97
5.11.7;Frequently Asked Questions;100
6;Chapter 3 The IPv6 Headers;102
6.1;Introduction;103
6.2;Analyzing the IPv6 Header;104
6.3;Comparing the IPv6 and IPv4 Headers;105
6.4;The IPv6 Extension Headers;108
6.4.1;Hop-by-Hop Options Header;112
6.4.2;Routing Header ;115
6.4.3;Fragment Header;119
6.4.4;Authentication Header;122
6.4.5;Encapsulating Security Payload;125
6.4.6;Destination Options Header;127
6.5;Summary;129
6.6;Solutions Fast Track;130
6.7;Frequently Asked Questions;132
7;Chapter 4 Explaining IPv6 Addressing;134
7.1;Introduction;135
7.2;The Basics of IPv6 Addressing;136
7.3;IPv6 Addressing Scheme Characteristics;137
7.3.1;IPv6 Header Overview;137
7.3.1.1;Version Field;137
7.3.1.2;Traffic Class Field;138
7.3.1.3;Flow Label Field;139
7.3.1.4;Payload Length Field;139
7.3.1.5;Next Header Field;140
7.3.2;IPv4 and IPv6 Address Space;140
7.3.3;IPv6 Address Structure;142
7.3.3.1;Unicast Addresses;148
7.3.3.2;Multicast Address;162
7.3.3.3;Anycast Address;166
7.3.3.4;Nodes-Required Address;168
7.4;The Need for Further Development;170
7.4.1;The Multihoming Problem;170
7.4.1.1;Dual IPv6 Addressing on a Host;172
7.4.1.2;Portability of Address Space;173
7.4.1.3;Dual IPv6 Address Prefixes Allocated within the Environment;173
7.4.1.4;Independently Assigned Address Space;174
7.4.2;The 6Bone;174
7.5;Summary;176
7.6;Solutions Fast Track;176
7.7;Frequently Asked Questions ;178
8;Chapter 5 Configuring IPv6 Addressing;180
8.1;Introduction;181
8.2;Configuring IPv6 Addressing;181
8.2.1;Configuring LAN Addresses;183
8.2.1.1;Configuring Duplicate Address Detection;186
8.2.1.2;Configuring DNS;187
8.2.2;Configuring WAN Addresses;189
8.2.2.1;Configuring ATM;189
8.2.2.2;Configuring Frame-Relay;190
8.2.3;Configuring ICMPv6 and Neighbor Discovery;193
8.3;Verifying Addressing Configuration;195
8.3.1;Verifying LAN Addressing;197
8.3.2;Verifying WAN Addressing;198
8.3.3;Verifying ICMPv6 and Neighbor Discovery Configuration;199
8.4;Summary;201
8.5;Solutions Fast Track;202
8.6;Frequently Asked Questions;204
9;Chapter 6 Routing IPv6 for the Cisco IOS;206
9.1;Introduction;207
9.2;Explaining RIP for IPv6;207
9.2.1;Periodic Updates;208
9.2.2;Routing Loops;210
9.2.3;Triggered Updates;211
9.2.4;Split Horizon;212
9.2.5;Counting to Infinity;213
9.2.6;Poison Reverse;214
9.2.7;Hold-Down Timers;214
9.2.8;RIP Timers;215
9.2.9;Administrative Distance;216
9.3;Configuring RIP for IPv6;217
9.3.1;Basic IPv6 RIP Configuration;217
9.3.2;Default Routes in IPv6 RIP;219
9.3.3;IPv6 RIP Route Redistribution;221
9.3.4;Filtering IPv6 RIP Routing ;226
9.4;Verifying IPv6 RIP Operation;229
9.5;Exploring IS-IS for IPv6;231
9.5.1;Link-State Advertisements;232
9.5.2;Neighbors;233
9.5.3;Link-State Database;234
9.5.4;Areas;234
9.5.5;IS-IS Specifics;234
9.5.6;CLNS Addressing;235
9.5.7;Integrated IS-IS;235
9.6;Configuring IS-IS for IPv6;236
9.6.1;IS-IS Default Routes;238
9.6.2;Maximum Paths for IS-IS;239
9.6.3;IS-IS Route Redistribution;239
9.7;Describing Muliprotocol BGP Extensions for IPv6;240
9.7.1;Autonomous Systems;241
9.7.2;Neighbors;241
9.7.3;BGP Metrics;241
9.8;Configuring BGP Extensions for IPv6;242
9.8.1;Configuring an IPv6 Neighbor Relationship;242
9.8.2;Configuring a BGP Router ID;246
9.8.3;Configuring BGP Peer Groups;247
9.8.4;Configuring Link-Local Addressing;247
9.8.5;BGP Redistribution;249
9.8.6;Verifying BGP Operation;252
9.8.6.1;Using the show bgp Command;252
9.8.6.2;Using the show bgp ipv6 summary Command;253
9.9;Other Routing Protocols and Future Developments;253
9.9.1;IPv6 OSPF;254
9.9.2;IPv6 EIGRP;254
9.10;Summary;255
9.11;Solutions Fast Track;256
9.12;Frequently Asked Questions ;258
10;Chapter 7 Deploying IPv6 on the Cisco IOS;260
10.1;Introduction;261
10.2;IPv6 Deployment Strategies;261
10.3;Understanding Deployment Methods;262
10.3.1;Configuring IPv6 over IPv4 Tunnels;263
10.3.1.1;IPv6 Manually Configured Tunnel;263
10.3.1.2;IPv6 over IPv4 GRE Tunnel;265
10.3.1.3;Automatic IPv6 Tunnel;266
10.3.1.4;Automatic 6to4 Tunnel;266
10.3.1.5;ISATAP Tunnel;268
10.3.1.6;6over4 Tunnels;269
10.3.1.7;Tunnel Broker;269
10.3.2;Configuring IPv6 over Dedicated Links;269
10.3.3;Deploying IPv6 over an MPLS Backbone;272
10.3.3.1;IPv6 Using Tunnels on the Customer Edge Routers;272
10.3.3.2;IPv6 over a Circuit Transport over MPLS;272
10.3.3.3;IPv6 on the Provider Edge Routers;273
10.3.4;Using a Dual-Stack Backbone;273
10.4;Translating between IPv4 and IPv6;276
10.4.1;Protocol Translation Mechanisms;277
10.4.1.1;NAT-PT;277
10.4.1.2;TCP-UDP Relay;278
10.4.1.3;Bump in the Stack Method;278
10.4.1.4;Dual-Stack Transition Mechanism;279
10.4.1.5;Socks-Based IPv6/IPv4 Gateway;279
10.5;Summary;281
10.6;Solutions Fast Track;283
10.7;Frequently Asked Questions;287
11;Chapter 8 IPv6 Security;288
11.1;Introduction;289
11.2;IPSec Overview;289
11.3;Understanding the Building Blocks of IPSec;291
11.3.1;Extension Headers Overview;291
11.3.2;Choosing the Mode of Operation ;292
11.3.3;Internet Key Exchange Overview;293
11.3.4;Understanding the Implementation Options;294
11.3.5;Understanding the Authentication Options;296
11.3.6;Cryptographic Algorithms Used in IPSec;296
11.4;Combining IPSec’s Cryptographic Mechanisms;297
11.4.1;The Security Policy Database;298
11.4.2;The Security Association;299
11.4.3;Internet Key Exchange;301
11.4.3.1;IKE Phase 1 Main Mode;304
11.4.3.2;IKE Phase 1 Aggressive Mode;305
11.4.3.3;IKE Phase 2 Quick Mode;306
11.5;Applying Perimeter Security;307
11.6;Summary;310
11.7;Solutions Fast Track;311
11.8;Frequently Asked Questions;313
12;Chapter 9 Monitoring and Troubleshooting IPv6 Networks;316
12.1;Introduction;317
12.2;Using show Commands;317
12.2.1;Using Basic show Commands;317
12.2.2;Using the show bgp Commands;325
12.3;Using debug Commands;329
12.4;Analyzing IPv6 Traffic;333
12.4.1;What’s New in Internet Control Message Protocol for IPv6;334
12.4.2;The Neighbor Discovery Process;336
12.5;Summary;342
12.6;Solutions Fast Track;342
12.7;Frequently Asked Questions;344
13;Appendix Configuring IPv6 for the Cisco IOS Fast Track;346
14;Index ;364